diff --git a/neutrino-proxy-admin/src/views/proxy/license.vue b/neutrino-proxy-admin/src/views/proxy/license.vue
index 3e5f5e27..8fc21995 100644
--- a/neutrino-proxy-admin/src/views/proxy/license.vue
+++ b/neutrino-proxy-admin/src/views/proxy/license.vue
@@ -36,6 +36,11 @@
           <span>{{scope.row.key}}</span>
         </template>
       </el-table-column>
+      <el-table-column align="center" :label="$t('限速')" width="100">
+        <template slot-scope="scope">
+          <span>{{scope.row.upLimitRate ? scope.row.upLimitRate : '--'}} / {{scope.row.downLimitRate ? scope.row.downLimitRate : '--'}}</span>
+        </template>
+      </el-table-column>
       <el-table-column width="150px" align="center" :label="$t('table.createTime')">
         <template slot-scope="scope">
           <span>{{scope.row.createTime | parseTime('{y}-{m}-{d} {h}:{i}')}}</span>
@@ -85,6 +90,12 @@
         <el-form-item :label="$t('License名称')" prop="name">
           <el-input v-model="temp.name"></el-input>
         </el-form-item>
+        <el-form-item :label="$t('上传限速')" prop="upLimitRate">
+          <el-input v-model="temp.upLimitRate" placeholder="如：10240B、500K、1M"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('下载限速')" prop="downLimitRate">
+          <el-input v-model="temp.downLimitRate" placeholder="如：10240B、500K、1M"></el-input>
+        </el-form-item>
       </el-form>
       <div slot="footer" class="dialog-footer">
         <el-button @click="dialogFormVisible = false">{{$t('table.cancel')}}</el-button>
diff --git a/neutrino-proxy-admin/src/views/proxy/portMapping.vue b/neutrino-proxy-admin/src/views/proxy/portMapping.vue
index 96f6a65a..597edaf6 100644
--- a/neutrino-proxy-admin/src/views/proxy/portMapping.vue
+++ b/neutrino-proxy-admin/src/views/proxy/portMapping.vue
@@ -39,17 +39,17 @@
           <span>{{ scope.row.userName }}</span>
         </template>
       </el-table-column>
-      <el-table-column align="center" :label="$t('table.licenseName')" width="130">
+      <el-table-column align="center" :label="$t('table.licenseName')" width="120">
         <template slot-scope="scope">
           <span>{{ scope.row.licenseName }}</span>
         </template>
       </el-table-column>
-      <el-table-column align="center" :label="$t('table.protocalName')" width="100">
+      <el-table-column align="center" :label="$t('table.protocalName')" width="80">
         <template slot-scope="scope">
           <span>{{ scope.row.protocal }}</span>
         </template>
       </el-table-column>
-      <el-table-column align="center" :label="$t('table.domainName')" width="200">
+      <el-table-column align="center" :label="$t('table.domainName')" width="180">
         <template slot-scope="scope">
           <span>{{ scope.row.domain }}</span>
         </template>
@@ -64,17 +64,22 @@
           <span>{{ scope.row.clientIp }}:{{ scope.row.clientPort }}</span>
         </template>
       </el-table-column>
+      <el-table-column align="center" :label="$t('限速')" width="100">
+        <template slot-scope="scope">
+          <span>{{scope.row.upLimitRate ? scope.row.upLimitRate : '--'}} / {{scope.row.downLimitRate ? scope.row.downLimitRate : '--'}}</span>
+        </template>
+      </el-table-column>
       <el-table-column align="center" :label="$t('table.desc')" width="120">
         <template slot-scope="scope">
           <span>{{ scope.row.description }}</span>
         </template>
       </el-table-column>
 
-      <el-table-column width="150px" align="center" :label="$t('table.createTime')">
-        <template slot-scope="scope">
-          <span>{{ scope.row.createTime | parseTime('{y}-{m}-{d} {h}:{i}') }}</span>
-        </template>
-      </el-table-column>
+<!--      <el-table-column width="150px" align="center" :label="$t('table.createTime')">-->
+<!--        <template slot-scope="scope">-->
+<!--          <span>{{ scope.row.createTime | parseTime('{y}-{m}-{d} {h}:{i}') }}</span>-->
+<!--        </template>-->
+<!--      </el-table-column>-->
       <el-table-column width="150px" align="center" :label="$t('table.updateTime')">
         <template slot-scope="scope">
           <span>{{ scope.row.updateTime | parseTime('{y}-{m}-{d} {h}:{i}') }}</span>
@@ -181,6 +186,12 @@
             </el-option>
           </el-select>
         </el-form-item>
+        <el-form-item :label="$t('上传限速')" prop="upLimitRate">
+          <el-input v-model="temp.upLimitRate" placeholder="如：10240B、500K、1M"></el-input>
+        </el-form-item>
+        <el-form-item :label="$t('下载限速')" prop="downLimitRate">
+          <el-input v-model="temp.downLimitRate" placeholder="如：10240B、500K、1M"></el-input>
+        </el-form-item>
         <el-form-item :label="$t('描述')" prop="description">
           <el-input v-model="temp.description"></el-input>
         </el-form-item>
diff --git a/neutrino-proxy-core/src/main/java/org/dromara/neutrinoproxy/core/Constants.java b/neutrino-proxy-core/src/main/java/org/dromara/neutrinoproxy/core/Constants.java
index ff647835..1f129bf7 100644
--- a/neutrino-proxy-core/src/main/java/org/dromara/neutrinoproxy/core/Constants.java
+++ b/neutrino-proxy-core/src/main/java/org/dromara/neutrinoproxy/core/Constants.java
@@ -51,6 +51,8 @@ public interface Constants {
 
     AttributeKey<Integer> SERVER_PORT = AttributeKey.newInstance("serverPort");
 
+    AttributeKey<Boolean> FLOW_LIMITER_FLAG = AttributeKey.newInstance("flowLimiterFlag");
+
 
     int HEADER_SIZE = 4;
     int TYPE_SIZE = 1;
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/ProxyServer.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/ProxyServer.java
index 080c02f1..46e32d3d 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/ProxyServer.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/ProxyServer.java
@@ -2,7 +2,6 @@ package org.dromara.neutrinoproxy.server;
 
 import lombok.extern.slf4j.Slf4j;
 import org.dromara.solonplugins.job.annotation.EnableJob;
-import org.noear.snack.core.utils.StringUtil;
 import org.noear.solon.Solon;
 import org.noear.solon.Utils;
 import org.noear.solon.annotation.SolonMain;
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/base/proxy/ProxyConfiguration.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/base/proxy/ProxyConfiguration.java
index 1dc50a26..9eb36f0a 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/base/proxy/ProxyConfiguration.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/base/proxy/ProxyConfiguration.java
@@ -22,6 +22,7 @@ import org.dromara.neutrinoproxy.server.proxy.core.TcpVisitorChannelHandler;
 import org.dromara.neutrinoproxy.server.proxy.core.UdpVisitorChannelHandler;
 import org.dromara.neutrinoproxy.server.proxy.security.TcpVisitorSecurityChannelHandler;
 import org.dromara.neutrinoproxy.server.proxy.security.UdpVisitorSecurityChannelHandler;
+import org.dromara.neutrinoproxy.server.proxy.security.VisitorFlowLimiterChannelHandler;
 import org.noear.solon.Solon;
 import org.noear.solon.annotation.Bean;
 import org.noear.solon.annotation.Configuration;
@@ -76,7 +77,8 @@ public class ProxyConfiguration implements LifecycleBean {
             }
             ch.pipeline().addFirst(new BytesMetricsHandler());
 //            ch.pipeline().addLast(new ChannelTrafficShapingHandler(1024 * 1024 * 20, 1024 * 1024 * 20, 100, 20000));
-            ch.pipeline().addLast(new TcpVisitorSecurityChannelHandler());
+            ch.pipeline().addLast("security", new TcpVisitorSecurityChannelHandler());
+            ch.pipeline().addLast(new VisitorFlowLimiterChannelHandler());
             ch.pipeline().addLast(new TcpVisitorChannelHandler());
             }
         });
@@ -114,7 +116,8 @@ public class ProxyConfiguration implements LifecycleBean {
                     if (null != proxyConfig.getServer().getUdp().getTransferLogEnable() && proxyConfig.getServer().getUdp().getTransferLogEnable()) {
                         ch.pipeline().addFirst(new LoggingHandler(UdpVisitorChannelHandler.class));
                     }
-                    pipeline.addLast(udpServerWorkerGroup, new UdpVisitorSecurityChannelHandler());
+                    pipeline.addLast(udpServerWorkerGroup, "security", new UdpVisitorSecurityChannelHandler());
+                    ch.pipeline().addLast(new VisitorFlowLimiterChannelHandler());
                     pipeline.addLast(udpServerWorkerGroup, new UdpVisitorChannelHandler());
                 }
             });
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/constant/ExceptionConstant.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/constant/ExceptionConstant.java
index e83efd35..ed149c80 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/constant/ExceptionConstant.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/constant/ExceptionConstant.java
@@ -40,8 +40,8 @@ public enum ExceptionConstant {
 	NO_PERMISSION_VISIT(5, "当前用户无权访问该资源"),
 	PARAMS_NOT_NULL(10, "参数[{}]不能为空"),
 	PARAMS_NOT_EMPTY(11, "参数[{}]不能为空"),
-
 	FILED_LENGTH_OUT(12 ,"{}不能超出长度{}"),
+    BYTES_DESC_INVALID(13, "参数[{}]字节描述不合法"),
 
 	// 用户管理(11000)
 	// license管理(12000)
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/LicenseController.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/LicenseController.java
index 8018b0c5..e6034972 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/LicenseController.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/LicenseController.java
@@ -70,6 +70,8 @@ public class LicenseController {
 		ParamCheckUtil.checkNotNull(req, "req");
 		ParamCheckUtil.checkNotEmpty(req.getName(), "name");
 		ParamCheckUtil.checkNotNull(req.getUserId(), "userId");
+        ParamCheckUtil.checkBytesDesc(req.getUpLimitRate(), "upLimitRate");
+        ParamCheckUtil.checkBytesDesc(req.getDownLimitRate(), "downLimitRate");
 
 		return licenseService.create(req);
 	}
@@ -81,6 +83,8 @@ public class LicenseController {
 		ParamCheckUtil.checkNotNull(req, "req");
 		ParamCheckUtil.checkNotNull(req.getId(), "id");
 		ParamCheckUtil.checkNotEmpty(req.getName(), "name");
+        ParamCheckUtil.checkBytesDesc(req.getUpLimitRate(), "upLimitRate");
+        ParamCheckUtil.checkBytesDesc(req.getDownLimitRate(), "downLimitRate");
 
 		return licenseService.update(req);
 	}
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/PortMappingController.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/PortMappingController.java
index 85cb748a..ea1dcbe5 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/PortMappingController.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/PortMappingController.java
@@ -43,6 +43,8 @@ public class PortMappingController {
         ParamCheckUtil.checkNotNull(req.getClientPort(), "clientPort");
         ParamCheckUtil.checkNotEmpty(req.getProtocal(), "protocal");
 		ParamCheckUtil.checkMaxLength(req.getDescription(), 50, "描述", "50");
+        ParamCheckUtil.checkBytesDesc(req.getUpLimitRate(), "upLimitRate");
+        ParamCheckUtil.checkBytesDesc(req.getDownLimitRate(), "downLimitRate");
         if (StringUtils.isBlank(req.getClientIp())) {
             // 没传客户端ip，默认为127.0.0.1
             req.setClientIp("127.0.0.1");
@@ -60,6 +62,9 @@ public class PortMappingController {
 		if (null == req.getProxyTimeoutMs()) {
 			req.setProxyTimeoutMs(0L);
 		}
+        if (null == req.getSecurityGroupId()) {
+            req.setSecurityGroupId(0);
+        }
 
 		return portMappingService.create(req);
 	}
@@ -73,6 +78,8 @@ public class PortMappingController {
 		ParamCheckUtil.checkNotNull(req.getClientPort(), "clientPort");
 		ParamCheckUtil.checkNotEmpty(req.getProtocal(), "protocal");
 		ParamCheckUtil.checkMaxLength(req.getDescription(), 50, "描述", "50");
+        ParamCheckUtil.checkBytesDesc(req.getUpLimitRate(), "upLimitRate");
+        ParamCheckUtil.checkBytesDesc(req.getDownLimitRate(), "downLimitRate");
 		if (StringUtils.isBlank(req.getClientIp())) {
 			// 没传客户端ip，默认为127.0.0.1
 			req.setClientIp("127.0.0.1");
@@ -90,6 +97,9 @@ public class PortMappingController {
 		if (null == req.getProxyTimeoutMs()) {
 			req.setProxyTimeoutMs(0L);
 		}
+        if (null == req.getSecurityGroupId()) {
+            req.setSecurityGroupId(0);
+        }
 
         portMappingService.update(req);
 	}
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/LicenseCreateReq.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/LicenseCreateReq.java
index 06524b93..2cc43a63 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/LicenseCreateReq.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/LicenseCreateReq.java
@@ -38,4 +38,12 @@ public class LicenseCreateReq {
 	 * 用户ID
 	 */
 	private Integer userId;
+    /**
+     * 上传限速
+     */
+    private String upLimitRate;
+    /**
+     * 下载限速
+     */
+    private String downLimitRate;
 }
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/LicenseUpdateReq.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/LicenseUpdateReq.java
index 0f91131f..79a4bf8c 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/LicenseUpdateReq.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/LicenseUpdateReq.java
@@ -38,4 +38,12 @@ public class LicenseUpdateReq {
 	 * license名称
 	 */
 	private String name;
+    /**
+     * 上传限速
+     */
+    private String upLimitRate;
+    /**
+     * 下载限速
+     */
+    private String downLimitRate;
 }
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/PortMappingCreateReq.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/PortMappingCreateReq.java
index 1ee94e0c..87ae362d 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/PortMappingCreateReq.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/PortMappingCreateReq.java
@@ -54,6 +54,14 @@ public class PortMappingCreateReq {
 	 * 客户端端口
 	 */
 	private Integer clientPort;
+    /**
+     * 上传限速
+     */
+    private String upLimitRate;
+    /**
+     * 下载限速
+     */
+    private String downLimitRate;
 	/**
 	 * 代理响应数量（响应数据包数量，如果没有拆包则等于数据条数）
 	 */
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/PortMappingUpdateReq.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/PortMappingUpdateReq.java
index 6ba18c1c..31f85a01 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/PortMappingUpdateReq.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/req/proxy/PortMappingUpdateReq.java
@@ -58,6 +58,14 @@ public class PortMappingUpdateReq {
 	 * 客户端端口
 	 */
 	private Integer clientPort;
+    /**
+     * 上传限速
+     */
+    private String upLimitRate;
+    /**
+     * 下载限速
+     */
+    private String downLimitRate;
 	/**
 	 * 代理响应数量（响应数据包数量，如果没有拆包则等于数据条数）
 	 */
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/res/proxy/LicenseListRes.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/res/proxy/LicenseListRes.java
index 8c25cfab..96ce2c4a 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/res/proxy/LicenseListRes.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/res/proxy/LicenseListRes.java
@@ -32,6 +32,14 @@ public class LicenseListRes {
 	 * 用户名
 	 */
 	private String userName;
+    /**
+     * 上传限速
+     */
+    private String upLimitRate;
+    /**
+     * 下载限速
+     */
+    private String downLimitRate;
 	/**
 	 * 是否在线
 	 * {@link OnlineStatusEnum}
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/res/proxy/PortMappingListRes.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/res/proxy/PortMappingListRes.java
index 19203115..465f9a6d 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/res/proxy/PortMappingListRes.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/controller/res/proxy/PortMappingListRes.java
@@ -75,6 +75,14 @@ public class PortMappingListRes {
 	 * 客户端端口
 	 */
 	private Integer clientPort;
+    /**
+     * 上传限速
+     */
+    private String upLimitRate;
+    /**
+     * 下载限速
+     */
+    private String downLimitRate;
 	/**
 	 * 客户端端口
 	 */
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/LicenseMapper.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/LicenseMapper.java
index 4f0a95a5..c1663f98 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/LicenseMapper.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/LicenseMapper.java
@@ -89,14 +89,6 @@ public interface LicenseMapper extends BaseMapper<LicenseDO> {
         return this.selectById(id);
     }
 
-    default void update(Integer id, String name, Date updateTime) {
-        this.update(null, new LambdaUpdateWrapper<LicenseDO>()
-                .eq(LicenseDO::getId, id)
-                .set(LicenseDO::getName, name)
-                .set(LicenseDO::getUpdateTime, updateTime)
-        );
-    }
-
     default List<LicenseDO> findByIds(Set<Integer> ids) {
         return selectBatchIds(ids);
     }
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/entity/LicenseDO.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/entity/LicenseDO.java
index a672b522..c170c381 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/entity/LicenseDO.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/entity/LicenseDO.java
@@ -21,6 +21,7 @@
  */
 package org.dromara.neutrinoproxy.server.dal.entity;
 
+import cn.hutool.core.bean.BeanUtil;
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
@@ -59,6 +60,14 @@ public class LicenseDO {
 	 * 用户ID
 	 */
 	private Integer userId;
+    /**
+     * 上传限速
+     */
+    private String upLimitRate;
+    /**
+     * 下载限速
+     */
+    private String downLimitRate;
 	/**
 	 * 是否在线
 	 * {@link OnlineStatusEnum}
@@ -80,14 +89,7 @@ public class LicenseDO {
 
     public LicenseListRes toRes() {
         LicenseListRes res = new LicenseListRes();
-        res.setId(id);
-        res.setName(name);
-        res.setKey(key);
-        res.setUserId(userId);
-        res.setIsOnline(isOnline);
-        res.setEnable(enable);
-        res.setCreateTime(createTime);
-        res.setUpdateTime(updateTime);
+        BeanUtil.copyProperties(this, res);
         return res;
     }
 }
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/entity/PortMappingDO.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/entity/PortMappingDO.java
index b6f2af36..16745fda 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/entity/PortMappingDO.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/dal/entity/PortMappingDO.java
@@ -70,6 +70,14 @@ public class PortMappingDO {
 	 * 客户端端口
 	 */
 	private Integer clientPort;
+    /**
+     * 上传限速
+     */
+    private String upLimitRate;
+    /**
+     * 下载限速
+     */
+    private String downLimitRate;
 	/**
 	 * 描述
 	 */
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/enhance/HttpProxy.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/enhance/HttpProxy.java
index 19013cf2..201c189c 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/enhance/HttpProxy.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/enhance/HttpProxy.java
@@ -12,6 +12,7 @@ import org.dromara.neutrinoproxy.server.base.proxy.ProxyConfig;
 import org.dromara.neutrinoproxy.server.proxy.core.BytesMetricsHandler;
 import org.dromara.neutrinoproxy.server.proxy.core.ProxyTunnelServer;
 import org.dromara.neutrinoproxy.server.proxy.security.HttpVisitorSecurityChannelHandler;
+import org.dromara.neutrinoproxy.server.proxy.security.VisitorFlowLimiterChannelHandler;
 import org.noear.solon.annotation.Component;
 import org.noear.solon.annotation.Inject;
 import org.noear.solon.core.event.AppLoadEndEvent;
@@ -47,7 +48,8 @@ public class HttpProxy implements EventListener<AppLoadEndEvent> {
                                 ch.pipeline().addFirst(new LoggingHandler(HttpProxy.class));
                             }
                             ch.pipeline().addFirst(new BytesMetricsHandler());
-                            ch.pipeline().addLast(new HttpVisitorSecurityChannelHandler(proxyConfig.getServer().getTcp().getDomainName()));
+                            ch.pipeline().addLast("security", new HttpVisitorSecurityChannelHandler(proxyConfig.getServer().getTcp().getDomainName()));
+                            ch.pipeline().addLast(new VisitorFlowLimiterChannelHandler());
                             ch.pipeline().addLast(new HttpVisitorChannelHandler());
                         }
                     });
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/enhance/HttpsProxy.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/enhance/HttpsProxy.java
index 2b49d5db..13c3cef0 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/enhance/HttpsProxy.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/enhance/HttpsProxy.java
@@ -15,6 +15,7 @@ import org.dromara.neutrinoproxy.server.base.proxy.ProxyConfig;
 import org.dromara.neutrinoproxy.server.proxy.core.BytesMetricsHandler;
 import org.dromara.neutrinoproxy.server.proxy.core.ProxyTunnelServer;
 import org.dromara.neutrinoproxy.server.proxy.security.HttpVisitorSecurityChannelHandler;
+import org.dromara.neutrinoproxy.server.proxy.security.VisitorFlowLimiterChannelHandler;
 import org.noear.solon.annotation.Component;
 import org.noear.solon.annotation.Inject;
 import org.noear.solon.core.event.AppLoadEndEvent;
@@ -56,7 +57,8 @@ public class HttpsProxy implements EventListener<AppLoadEndEvent> {
                             }
                             ch.pipeline().addLast(createSslHandler());
                             ch.pipeline().addFirst(new BytesMetricsHandler());
-                            ch.pipeline().addLast(new HttpVisitorSecurityChannelHandler(proxyConfig.getServer().getTcp().getDomainName()));
+                            ch.pipeline().addLast("security", new HttpVisitorSecurityChannelHandler(proxyConfig.getServer().getTcp().getDomainName()));
+                            ch.pipeline().addLast(new VisitorFlowLimiterChannelHandler());
                             ch.pipeline().addLast(new HttpVisitorChannelHandler());
                         }
                     });
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/handler/ProxyMessageConnectHandler.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/handler/ProxyMessageConnectHandler.java
index a638f4a0..6b4548bf 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/handler/ProxyMessageConnectHandler.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/handler/ProxyMessageConnectHandler.java
@@ -82,7 +82,8 @@ public class ProxyMessageConnectHandler implements ProxyMessageHandler {
 		ctx.channel().attr(Constants.LICENSE_ID).set(licenseDO.getId());
 		ctx.channel().attr(Constants.NEXT_CHANNEL).set(visitorChannel);
 		visitorChannel.attr(Constants.NEXT_CHANNEL).set(ctx.channel());
-		// 代理客户端与后端服务器连接成功，修改用户连接为可读状态
+        visitorChannel.attr(Constants.LICENSE_ID).set(licenseDO.getId());
+        // 代理客户端与后端服务器连接成功，修改用户连接为可读状态
 		visitorChannel.config().setOption(ChannelOption.AUTO_READ, true);
 
 		// 获取代理附加对象
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/HttpVisitorSecurityChannelHandler.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/HttpVisitorSecurityChannelHandler.java
index d749c99c..a8128b90 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/HttpVisitorSecurityChannelHandler.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/HttpVisitorSecurityChannelHandler.java
@@ -66,7 +66,6 @@ public class HttpVisitorSecurityChannelHandler extends ChannelInboundHandlerAdap
             ctx.channel().close();
             return;
         }
-        ctx.channel().attr(Constants.SERVER_PORT).set(serverPort);
 
         // 判断IP是否在该端口绑定的安全组允许的规则内
         String ip = IpUtil.getRealRemoteIp(httpContent);
@@ -80,6 +79,7 @@ public class HttpVisitorSecurityChannelHandler extends ChannelInboundHandlerAdap
         }
 
         // 继续传播
+        ctx.channel().attr(Constants.SERVER_PORT).set(serverPort);
         buf.resetReaderIndex();
         ctx.fireChannelRead(buf);
     }
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/TcpVisitorSecurityChannelHandler.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/TcpVisitorSecurityChannelHandler.java
index fead9490..cbcb45f3 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/TcpVisitorSecurityChannelHandler.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/TcpVisitorSecurityChannelHandler.java
@@ -6,6 +6,7 @@ import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
+import org.dromara.neutrinoproxy.core.Constants;
 import org.dromara.neutrinoproxy.core.util.IpUtil;
 import org.dromara.neutrinoproxy.server.service.PortMappingService;
 import org.dromara.neutrinoproxy.server.service.SecurityGroupService;
@@ -41,7 +42,9 @@ public class TcpVisitorSecurityChannelHandler extends ChannelInboundHandlerAdapt
             ctx.channel().close();
             return;
         }
+
         // 继续传播
+        ctx.channel().attr(Constants.SERVER_PORT).set(sa.getPort());
         buf.resetReaderIndex();
         ctx.fireChannelRead(buf);
     }
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/UdpVisitorSecurityChannelHandler.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/UdpVisitorSecurityChannelHandler.java
index 4e4db92e..8e9d43f0 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/UdpVisitorSecurityChannelHandler.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/UdpVisitorSecurityChannelHandler.java
@@ -5,6 +5,7 @@ import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
 import io.netty.channel.socket.DatagramPacket;
 import lombok.extern.slf4j.Slf4j;
+import org.dromara.neutrinoproxy.core.Constants;
 import org.dromara.neutrinoproxy.server.service.PortMappingService;
 import org.dromara.neutrinoproxy.server.service.SecurityGroupService;
 import org.noear.solon.Solon;
@@ -32,6 +33,7 @@ public class UdpVisitorSecurityChannelHandler extends ChannelInboundHandlerAdapt
         }
 
         // 继续传播
+        ctx.channel().attr(Constants.SERVER_PORT).set(sa.getPort());
         ctx.fireChannelRead(msg);
     }
 }
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/VisitorFlowLimiterChannelHandler.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/VisitorFlowLimiterChannelHandler.java
new file mode 100644
index 00000000..bfb93e71
--- /dev/null
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/proxy/security/VisitorFlowLimiterChannelHandler.java
@@ -0,0 +1,52 @@
+package org.dromara.neutrinoproxy.server.proxy.security;
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
+import io.netty.handler.traffic.ChannelTrafficShapingHandler;
+import lombok.extern.slf4j.Slf4j;
+import org.dromara.neutrinoproxy.core.Constants;
+import org.dromara.neutrinoproxy.server.service.LicenseService;
+import org.dromara.neutrinoproxy.server.service.PortMappingService;
+import org.dromara.neutrinoproxy.server.service.SecurityGroupService;
+import org.dromara.neutrinoproxy.server.service.bo.FlowLimitBO;
+import org.noear.solon.Solon;
+
+/**
+ * 访问者流量限制器
+ * @author: aoshiguchen
+ * @date: 2023/12/15
+ */
+@Slf4j
+public class VisitorFlowLimiterChannelHandler extends ChannelInboundHandlerAdapter {
+
+    private final LicenseService licenseService = Solon.context().getBean(LicenseService.class);
+    private final PortMappingService portMappingService = Solon.context().getBean(PortMappingService.class);
+
+    @Override
+    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
+        Boolean flowLimiterFlag = ctx.channel().attr(Constants.FLOW_LIMITER_FLAG).get();
+
+        if (null == flowLimiterFlag || !flowLimiterFlag) {
+            Integer serverPort = ctx.channel().attr(Constants.SERVER_PORT).get();
+            Long upLimitRate = null;
+            Long downLimitRate = null;
+            // 先获取端口映射上的限速设置
+            FlowLimitBO flowLimitBO = portMappingService.getFlowLimitByServerPort(serverPort);
+            if (null != flowLimitBO) {
+                upLimitRate = flowLimitBO.getUpLimitRate();
+                downLimitRate = flowLimitBO.getDownLimitRate();
+            }
+            if (null != upLimitRate || null != downLimitRate) {
+                // 如果不全为空，则需要做限速
+                ctx.pipeline().addAfter("security", "trafficShaping", new ChannelTrafficShapingHandler(downLimitRate == null ? 0 : downLimitRate, upLimitRate == null ? 0 : upLimitRate, 100, 600000));
+            }
+
+            // 每个连接第一次处理之后。无论是否限速，该连接后续都不在处理，避免频繁执行影响性能
+            ctx.channel().attr(Constants.FLOW_LIMITER_FLAG).set(Boolean.TRUE);
+        }
+
+        // 继续传播
+        ctx.fireChannelRead(msg);
+    }
+
+}
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/LicenseService.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/LicenseService.java
index 2c0a3dac..4d649029 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/LicenseService.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/LicenseService.java
@@ -1,7 +1,10 @@
 package org.dromara.neutrinoproxy.server.service;
 
+import cn.hutool.cache.Cache;
+import cn.hutool.cache.CacheUtil;
 import cn.hutool.core.collection.CollectionUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
 import com.baomidou.mybatisplus.solon.plugins.pagination.Page;
 import com.google.common.collect.Sets;
@@ -29,7 +32,9 @@ import org.dromara.neutrinoproxy.server.dal.UserMapper;
 import org.dromara.neutrinoproxy.server.dal.entity.LicenseDO;
 import org.dromara.neutrinoproxy.server.dal.entity.PortMappingDO;
 import org.dromara.neutrinoproxy.server.dal.entity.UserDO;
+import org.dromara.neutrinoproxy.server.service.bo.FlowLimitBO;
 import org.dromara.neutrinoproxy.server.util.ParamCheckUtil;
+import org.dromara.neutrinoproxy.server.util.StringUtil;
 import org.noear.solon.annotation.Component;
 import org.noear.solon.annotation.Init;
 import org.noear.solon.annotation.Inject;
@@ -63,6 +68,8 @@ public class LicenseService implements LifecycleBean {
     private VisitorChannelService visitorChannelService;
     @Inject
     private DBInitialize dbInitialize;
+    // 流量限制缓存
+    private final Cache<Integer, FlowLimitBO> flowLimitCache = CacheUtil.newLRUCache(200, 1000 * 60 * 5);
 
     public PageInfo<LicenseListRes> page(PageQuery pageQuery, LicenseListReq req) {
         Page<LicenseDO> page = licenseMapper.selectPage(new Page<>(pageQuery.getCurrent(), pageQuery.getSize()), new LambdaQueryWrapper<LicenseDO>()
@@ -128,15 +135,21 @@ public class LicenseService implements LifecycleBean {
         String key = UUID.randomUUID().toString().replaceAll("-", "");
         Date now = new Date();
 
-        licenseMapper.insert(new LicenseDO()
-                .setName(req.getName())
-                .setKey(key)
-                .setUserId(req.getUserId())
-                .setIsOnline(OnlineStatusEnum.OFFLINE.getStatus())
-                .setEnable(EnableStatusEnum.ENABLE.getStatus())
-                .setCreateTime(now)
-                .setUpdateTime(now)
-        );
+        licenseDO = new LicenseDO()
+            .setName(req.getName())
+            .setKey(key)
+            .setUserId(req.getUserId())
+            .setUpLimitRate(req.getUpLimitRate())
+            .setDownLimitRate(req.getDownLimitRate())
+            .setIsOnline(OnlineStatusEnum.OFFLINE.getStatus())
+            .setEnable(EnableStatusEnum.ENABLE.getStatus())
+            .setCreateTime(now)
+            .setUpdateTime(now);
+
+        licenseMapper.insert(licenseDO);
+
+        // 刷新流量限制缓存
+        refreshFlowLimitCache(licenseDO.getId(), licenseDO.getUpLimitRate(), licenseDO.getDownLimitRate());
         return new LicenseCreateRes();
     }
 
@@ -147,7 +160,17 @@ public class LicenseService implements LifecycleBean {
         LicenseDO licenseCheck = licenseMapper.checkRepeat(oldLicenseDO.getUserId(), req.getName(), Sets.newHashSet(oldLicenseDO.getId()));
         ParamCheckUtil.checkMustNull(licenseCheck, ExceptionConstant.LICENSE_NAME_CANNOT_REPEAT);
 
-        licenseMapper.update(req.getId(), req.getName(), new Date());
+        licenseMapper.update(null, new LambdaUpdateWrapper<LicenseDO>()
+            .eq(LicenseDO::getId, req.getId())
+            .set(LicenseDO::getName, req.getName())
+            .set(LicenseDO::getUpLimitRate, req.getUpLimitRate())
+            .set(LicenseDO::getDownLimitRate, req.getDownLimitRate())
+            .set(LicenseDO::getUpdateTime, new Date())
+        );
+
+        // 刷新流量限制缓存
+        refreshFlowLimitCache(req.getId(), req.getUpLimitRate(), req.getDownLimitRate());
+
         return new LicenseUpdateRes();
     }
 
@@ -200,6 +223,8 @@ public class LicenseService implements LifecycleBean {
         licenseMapper.deleteById(id);
         // 更新VisitorChannel
         visitorChannelService.updateVisitorChannelByLicenseId(id, EnableStatusEnum.DISABLE.getStatus());
+        // 删除流量限制缓存
+        flowLimitCache.remove(id);
     }
 
     /**
@@ -243,10 +268,51 @@ public class LicenseService implements LifecycleBean {
         if (NativeDetector.isAotRuntime()) {
             return;
         }
+        // 服务刚启动，所以默认所有license都是离线状态。解决服务突然关闭，在线状态来不及更新的问题
         licenseMapper.updateOnlineStatus(OnlineStatusEnum.OFFLINE.getStatus(), new Date());
+        // 刷新流量限制缓存
+        List<LicenseDO> licenseDOList = licenseMapper.listAll();
+        if (CollectionUtils.isEmpty(licenseDOList)) {
+            for (LicenseDO licenseDO : licenseDOList) {
+                refreshFlowLimitCache(licenseDO.getId(), licenseDO.getUpLimitRate(), licenseDO.getDownLimitRate());
+            }
+        }
     }
 
 
+    /**
+     * 刷新流量限制缓存
+     * @param id
+     * @param upLimitRate
+     * @param downLimitRate
+     */
+    private void refreshFlowLimitCache(Integer id, String upLimitRate, String downLimitRate) {
+        if (null == id) {
+            return;
+        }
+        flowLimitCache.put(id, new FlowLimitBO()
+            .setUpLimitRate(StringUtil.parseBytes(upLimitRate))
+            .setDownLimitRate(StringUtil.parseBytes(downLimitRate))
+        );
+    }
+
+    /**
+     * 获取license的流量限制
+     * @param licenseId
+     * @return
+     */
+    public FlowLimitBO getFlowLimit(Integer licenseId) {
+        FlowLimitBO res = flowLimitCache.get(licenseId);
+        if (null == res) {
+            LicenseDO licenseDO = licenseMapper.queryById(licenseId);
+            if (null != licenseDO) {
+                refreshFlowLimitCache(licenseId, licenseDO.getUpLimitRate(), licenseDO.getDownLimitRate());
+                res = flowLimitCache.get(licenseId);
+            }
+        }
+        return res;
+    }
+
     @Override
     public void start() throws Throwable {
 
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/PortMappingService.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/PortMappingService.java
index 2c5d7a11..9926b5cc 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/PortMappingService.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/PortMappingService.java
@@ -1,9 +1,12 @@
 package org.dromara.neutrinoproxy.server.service;
 
+import cn.hutool.cache.Cache;
+import cn.hutool.cache.CacheUtil;
 import cn.hutool.core.bean.BeanUtil;
 import cn.hutool.core.collection.CollectionUtil;
 import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
 import com.baomidou.mybatisplus.core.toolkit.StringUtils;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
@@ -36,19 +39,17 @@ import org.dromara.neutrinoproxy.server.dal.entity.LicenseDO;
 import org.dromara.neutrinoproxy.server.dal.entity.PortMappingDO;
 import org.dromara.neutrinoproxy.server.dal.entity.PortPoolDO;
 import org.dromara.neutrinoproxy.server.dal.entity.UserDO;
+import org.dromara.neutrinoproxy.server.service.bo.FlowLimitBO;
 import org.dromara.neutrinoproxy.server.util.ParamCheckUtil;
 import org.dromara.neutrinoproxy.server.util.ProxyUtil;
+import org.dromara.neutrinoproxy.server.util.StringUtil;
 import org.noear.solon.annotation.Component;
 import org.noear.solon.annotation.Init;
 import org.noear.solon.annotation.Inject;
 import org.noear.solon.core.bean.LifecycleBean;
 import org.noear.solon.core.runtime.NativeDetector;
 
-import java.util.Comparator;
-import java.util.Date;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.function.Function;
 import java.util.stream.Collectors;
@@ -76,9 +77,17 @@ public class PortMappingService implements LifecycleBean {
     private ProxyConfig proxyConfig;
     @Inject
     private DBInitialize dbInitialize;
+    @Inject
+    private LicenseService licenseService;
 
     /** 端口到安全组Id的映射 */
     private final Map<Integer, Integer> mappingPortToSecurityGroupMap = new ConcurrentHashMap<>();
+    // 服务端端口到端口映射id的映射
+    private final Cache<Integer, Integer> serverPortToPortMappingIdCache = CacheUtil.newLRUCache(500, 1000 * 60 * 10);
+    // 端口映射id到licenseId
+    private final Cache<Integer, Integer> idToLicenseIdCache = CacheUtil.newLRUCache(500, 1000 * 60 * 10);
+    // 流量限制缓存
+    private final Cache<Integer, FlowLimitBO> flowLimitCache = CacheUtil.newLRUCache(500, 1000 * 60 * 5);
 
     public PageInfo<PortMappingListRes> page(PageQuery pageQuery, PortMappingListReq req) {
         if (StringUtils.isNotEmpty(req.getDescription())) {
@@ -153,6 +162,8 @@ public class PortMappingService implements LifecycleBean {
         portMappingDO.setServerPort(req.getServerPort());
         portMappingDO.setClientIp(req.getClientIp());
         portMappingDO.setClientPort(req.getClientPort());
+        portMappingDO.setUpLimitRate(req.getUpLimitRate());
+        portMappingDO.setDownLimitRate(req.getDownLimitRate());
         portMappingDO.setProxyResponses(req.getProxyResponses());
         portMappingDO.setProxyTimeoutMs(req.getProxyTimeoutMs());
         portMappingDO.setDescription(req.getDescription());
@@ -170,6 +181,13 @@ public class PortMappingService implements LifecycleBean {
 
         updateMappingPortToSecurityGroupMap(portMappingDO.getServerPort(), req.getSecurityGroupId());
 
+        // 更新端口到映射的缓存
+        serverPortToPortMappingIdCache.put(req.getServerPort(), portMappingDO.getId());
+        // 更新端口映射到licenseId的缓存
+        idToLicenseIdCache.put(portMappingDO.getId(), portMappingDO.getLicenseId());
+        // 刷新流量限制缓存
+        refreshFlowLimitCache(portMappingDO.getId(), portMappingDO.getUpLimitRate(), portMappingDO.getDownLimitRate());
+
         return new PortMappingCreateRes();
     }
 
@@ -189,15 +207,25 @@ public class PortMappingService implements LifecycleBean {
         PortMappingDO oldPortMappingDO = portMappingMapper.findById(req.getId());
         ParamCheckUtil.checkNotNull(oldPortMappingDO, ExceptionConstant.PORT_MAPPING_NOT_EXIST);
 
-        PortMappingDO portMappingDO = new PortMappingDO();
-        BeanUtil.copyProperties(req, portMappingDO);
-        if (req.getSecurityGroupId() == null) {
-            portMappingDO.setSecurityGroupId(0);
-        }
-        portMappingDO.setUpdateTime(new Date());
-        portMappingDO.setEnable(EnableStatusEnum.ENABLE.getStatus());
-        portMappingMapper.updateById(portMappingDO);
+        // 更新端口映射
+        portMappingMapper.update(null, new LambdaUpdateWrapper<PortMappingDO>()
+            .eq(PortMappingDO::getId, req.getId())
+            .set(PortMappingDO::getProtocal, req.getProtocal())
+            .set(PortMappingDO::getSubdomain, req.getSubdomain())
+            .set(PortMappingDO::getServerPort, req.getServerPort())
+            .set(PortMappingDO::getClientIp, req.getClientIp())
+            .set(PortMappingDO::getClientPort, req.getClientPort())
+            .set(PortMappingDO::getUpLimitRate, req.getUpLimitRate())
+            .set(PortMappingDO::getDownLimitRate, req.getDownLimitRate())
+            .set(PortMappingDO::getProxyTimeoutMs, req.getProxyTimeoutMs())
+            .set(PortMappingDO::getProxyResponses, req.getProxyResponses())
+            .set(PortMappingDO::getSecurityGroupId, req.getSecurityGroupId())
+            .set(PortMappingDO::getDescription, req.getDescription())
+            .set(PortMappingDO::getUpdateTime, new Date())
+        );
+
         // 更新VisitorChannel
+        PortMappingDO portMappingDO = portMappingMapper.findById(req.getId());
         visitorChannelService.updateVisitorChannelByPortMapping(oldPortMappingDO, portMappingDO);
         // 删除老的域名映射
         if (NetworkProtocolEnum.isHttp(oldPortMappingDO.getProtocal()) && StrUtil.isNotBlank(oldPortMappingDO.getSubdomain())) {
@@ -209,6 +237,13 @@ public class PortMappingService implements LifecycleBean {
         }
 
         updateMappingPortToSecurityGroupMap(portMappingDO.getServerPort(), req.getSecurityGroupId());
+
+        // 更新端口到映射的缓存
+        serverPortToPortMappingIdCache.put(req.getServerPort(), req.getId());
+        // 更新端口映射到licenseId的缓存
+        idToLicenseIdCache.put(portMappingDO.getId(), portMappingDO.getLicenseId());
+        // 刷新流量限制缓存
+        refreshFlowLimitCache(req.getId(), req.getUpLimitRate(), req.getDownLimitRate());
     }
 
     public PortMappingDetailRes detail(Integer id) {
@@ -285,6 +320,11 @@ public class PortMappingService implements LifecycleBean {
         }
 
         updateMappingPortToSecurityGroupMap(portMappingDO.getServerPort(), null);
+
+        // 删除id到licenseId的映射
+        idToLicenseIdCache.remove(id);
+        // 删除流量限制缓存
+        flowLimitCache.remove(id);
     }
 
     public void portBindSecurityGroup(Integer portMappingId, Integer groupId) {
@@ -333,6 +373,7 @@ public class PortMappingService implements LifecycleBean {
         if (NativeDetector.isAotRuntime()) {
             return;
         }
+        // 服务刚启动，所以默认所有license都是离线状态。解决服务突然关闭，在线状态来不及更新的问题
         portMappingMapper.updateOnlineStatus(OnlineStatusEnum.OFFLINE.getStatus(), new Date());
 
         List<PortMappingDO> allMappingDOList = portMappingMapper.selectList(Wrappers.lambdaQuery(PortMappingDO.class));
@@ -341,6 +382,12 @@ public class PortMappingService implements LifecycleBean {
             if (securityGroupId != null && securityGroupId > 0) {
                 updateMappingPortToSecurityGroupMap(item.getServerPort(), item.getSecurityGroupId());
             }
+            // 更新端口到映射的缓存
+            serverPortToPortMappingIdCache.put(item.getServerPort(), item.getId());
+            // 更新端口映射到licenseId的缓存
+            idToLicenseIdCache.put(item.getId(), item.getLicenseId());
+            // 刷新流量限制缓存
+            refreshFlowLimitCache(item.getId(), item.getUpLimitRate(), item.getDownLimitRate());
         });
 
         // 未配置域名，则不需要处理域名映射逻辑
@@ -350,7 +397,6 @@ public class PortMappingService implements LifecycleBean {
         List<PortMappingDO> portMappingDOList = allMappingDOList.stream()
             .filter(item -> NetworkProtocolEnum.HTTP.getDesc().equals(item.getProtocal()) && item.getSubdomain() != null)
             .collect(Collectors.toList());
-//      List<PortMappingDO> portMappingDOList =  portMappingMapper.selectList(new LambdaQueryWrapper<PortMappingDO>().eq(PortMappingDO::getProtocal, NetworkProtocolEnum.HTTP.getDesc()).isNotNull(PortMappingDO::getSubdomain));
         if (CollectionUtil.isEmpty(portMappingDOList)) {
             return;
         }
@@ -363,6 +409,84 @@ public class PortMappingService implements LifecycleBean {
         });
     }
 
+    /**
+     * 刷新流量限制缓存
+     * @param id
+     * @param upLimitRate
+     * @param downLimitRate
+     */
+    private void refreshFlowLimitCache(Integer id, String upLimitRate, String downLimitRate) {
+        if (null == id) {
+            return;
+        }
+        flowLimitCache.put(id, new FlowLimitBO()
+            .setUpLimitRate(StringUtil.parseBytes(upLimitRate))
+            .setDownLimitRate(StringUtil.parseBytes(downLimitRate))
+        );
+    }
+
+    /**
+     * 获取license的流量限制
+     * @param id
+     * @return
+     */
+    public FlowLimitBO getFlowLimit(Integer id) {
+        FlowLimitBO res = flowLimitCache.get(id);
+        if (null == res) {
+            PortMappingDO portMappingDO = portMappingMapper.findById(id);
+            if (null != portMappingDO) {
+                refreshFlowLimitCache(id, portMappingDO.getUpLimitRate(), portMappingDO.getDownLimitRate());
+                res = flowLimitCache.get(id);
+            }
+        }
+        return res;
+    }
+
+    public Integer getPortMappingIdByServerPort(Integer serverPort) {
+        if (null == serverPort) {
+            return null;
+        }
+        Integer id = serverPortToPortMappingIdCache.get(serverPort);
+        if (null != id) {
+            return id;
+        }
+        List<PortMappingDO> portMappingDOList = portMappingMapper.findListByServerPort(serverPort);
+        // 不存在 或者 有多条记录，都不处理
+        if (CollectionUtils.isEmpty(portMappingDOList) || portMappingDOList.size() > 1) {
+            return null;
+        }
+        id = portMappingDOList.get(0).getId();
+        serverPortToPortMappingIdCache.put(serverPort, id);
+        return id;
+    }
+
+    public Integer getLicenseIdById(Integer id) {
+        Integer licenseId = idToLicenseIdCache.get(id);
+        if (null == licenseId) {
+            PortMappingDO portMappingDO = portMappingMapper.findById(id);
+            if (null != portMappingDO) {
+                licenseId = portMappingDO.getLicenseId();
+                idToLicenseIdCache.put(id, licenseId);
+            }
+        }
+        return licenseId;
+    }
+
+    public FlowLimitBO getFlowLimitByServerPort(Integer serverPort) {
+        Integer id = getPortMappingIdByServerPort(serverPort);
+        if (null == id) {
+            return null;
+        }
+        FlowLimitBO res = getFlowLimit(id);
+        if (null == res || (null == res.getUpLimitRate() && null == res.getDownLimitRate())) {
+            Integer licenseId = getLicenseIdById(id);
+            if (null != licenseId) {
+                res = licenseService.getFlowLimit(licenseId);
+            }
+        }
+        return res;
+    }
+
     private void updateMappingPortToSecurityGroupMap(Integer serverPort, Integer securityGroupId) {
         if (securityGroupId == null || securityGroupId == 0) {
             mappingPortToSecurityGroupMap.remove(serverPort);
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/bo/FlowLimitBO.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/bo/FlowLimitBO.java
new file mode 100644
index 00000000..1388be9f
--- /dev/null
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/service/bo/FlowLimitBO.java
@@ -0,0 +1,15 @@
+package org.dromara.neutrinoproxy.server.service.bo;
+
+import lombok.Data;
+import lombok.experimental.Accessors;
+
+/**
+ * @author: aoshiguchen
+ * @date: 2023/12/15
+ */
+@Accessors(chain = true)
+@Data
+public class FlowLimitBO {
+    private Long upLimitRate;
+    private Long downLimitRate;
+}
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/util/ParamCheckUtil.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/util/ParamCheckUtil.java
index f57b7677..bd498d20 100644
--- a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/util/ParamCheckUtil.java
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/util/ParamCheckUtil.java
@@ -103,4 +103,20 @@ public class ParamCheckUtil {
         }
     }
 
+    /**
+     * 校验字节描述
+     * @param str
+     * @param params
+     */
+    public static void checkBytesDesc(String str, Object... params) {
+        // 允许为空
+        if (StrUtil.isEmpty(str)) {
+            return;
+        }
+        Long bytes = StringUtil.parseBytes(str);
+        if (null == bytes || bytes <= 0) {
+            throw ServiceException.create(ExceptionConstant.BYTES_DESC_INVALID, params);
+        }
+    }
+
 }
diff --git a/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/util/StringUtil.java b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/util/StringUtil.java
new file mode 100644
index 00000000..b499e50c
--- /dev/null
+++ b/neutrino-proxy-server/src/main/java/org/dromara/neutrinoproxy/server/util/StringUtil.java
@@ -0,0 +1,75 @@
+package org.dromara.neutrinoproxy.server.util;
+
+import cn.hutool.core.util.StrUtil;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * @author: aoshiguchen
+ * @date: 2023/12/15
+ */
+public class StringUtil {
+    private static final Integer BYTES_MUL_KB = 1024;
+    private static final Integer BYTES_MUL_MB = BYTES_MUL_KB * 1024;
+    private static final Integer BYTES_MUL_GB = BYTES_MUL_MB * 1024;
+    private static final String[] BYTES_UNIT_STR = {"B", "K", "KB", "M", "MB", "G", "GB"};
+    private static final Integer[] BYTES_UNIT_MUL = {1, BYTES_MUL_KB, BYTES_MUL_KB, BYTES_MUL_MB, BYTES_MUL_MB, BYTES_MUL_GB, BYTES_MUL_GB};
+    private static final String BYTES_DESC_REGEX = "\\s*(\\d+)\\s*(B|K|KB|M|MB|G|GB)\\s*";
+    private static final Pattern BYTES_DESC_PATTERN = Pattern.compile(BYTES_DESC_REGEX);
+
+    /**
+     * 校验是否符合字节描述
+     * @param desc
+     * @return
+     */
+    public static boolean isBytesDesc(String desc) {
+        if (StrUtil.isBlank(desc)) {
+            return false;
+        }
+        return desc.toUpperCase().matches(BYTES_DESC_REGEX);
+    }
+
+    /**
+     * 解析字节数
+     * 支持B、K、KB、M、MB、G、GB 忽略大小写、忽略首尾空格、忽略数字与单位之间的空格
+     * @param desc
+     * @return
+     */
+    public static Long parseBytes(String desc) {
+        try {
+            if (!isBytesDesc(desc)) {
+                return null;
+            }
+            Matcher matcher = BYTES_DESC_PATTERN.matcher(desc.toUpperCase());
+            boolean found = matcher.find();
+            if (!found) {
+                return null;
+            }
+            Integer n = Integer.parseInt(matcher.group(1));
+            String unit = matcher.group(2);
+            Integer unitIndex = getBytesUnitIndex(unit);
+            if (null == unitIndex) {
+                return null;
+            }
+
+            return (long)n * BYTES_UNIT_MUL[unitIndex];
+        } catch (Exception e) {
+            // ignore
+        }
+
+        return null;
+    }
+
+    private static Integer getBytesUnitIndex(String unit) {
+        if (StrUtil.isBlank(unit)) {
+            return null;
+        }
+        for (int i = 0; i < BYTES_UNIT_STR.length; i++) {
+            if (unit.equals(BYTES_UNIT_STR[i])) {
+                return i;
+            }
+        }
+        return null;
+    }
+}
diff --git a/neutrino-proxy-server/src/main/resources/sql/h2/init-structure.sql b/neutrino-proxy-server/src/main/resources/sql/h2/init-structure.sql
index ece2aa47..bfeaeda7 100644
--- a/neutrino-proxy-server/src/main/resources/sql/h2/init-structure.sql
+++ b/neutrino-proxy-server/src/main/resources/sql/h2/init-structure.sql
@@ -83,6 +83,8 @@ CREATE TABLE IF NOT EXISTS `license` (
     `name` VARCHAR(50) NOT NULL,
     `key` VARCHAR(100) NOT NULL,
     `user_id` INTEGER NOT NULL,
+    `up_limit_rate` VARCHAR(20) DEFAULT NULL,
+    `down_limit_rate` VARCHAR(20) DEFAULT NULL,
     `is_online` INTEGER(2) NOT NULL,
     `enable` INTEGER(2) NOT NULL,
     `create_time` TIMESTAMP NOT NULL,
@@ -99,6 +101,8 @@ CREATE TABLE IF NOT EXISTS `port_mapping` (
   `server_port` INTEGER NOT NULL,
   `client_ip` VARCHAR(20) NOT NULL,
   `client_port` INTEGER NOT NULL,
+  `up_limit_rate` VARCHAR(20) DEFAULT NULL,
+  `down_limit_rate` VARCHAR(20) DEFAULT NULL,
   `is_online` INTEGER(2) NOT NULL,
   `description` VARCHAR(100) DEFAULT NULL,
   `proxy_responses` INTEGER(20) NOT NULL DEFAULT 0,
@@ -167,8 +171,8 @@ CREATE TABLE IF NOT EXISTS `flow_report_minute` (
     `id` INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT,
     `user_id` INTEGER(20) NOT NULL,
     `license_id` INTEGER(20) NOT NULL,
-    `write_bytes` INTEGER(20) NOT NULL,
-    `read_bytes` INTEGER(20) NOT NULL,
+    `write_bytes` bigint NOT NULL,
+    `read_bytes` bigint NOT NULL,
     `date` TIMESTAMP NOT NULL,
     `date_str` VARCHAR(20) NOT NULL,
     `create_time` TIMESTAMP NOT NULL
@@ -183,8 +187,8 @@ CREATE TABLE IF NOT EXISTS `flow_report_hour` (
     `id` INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT,
     `user_id` INTEGER(20) NOT NULL,
     `license_id` INTEGER(20) NOT NULL,
-    `write_bytes` INTEGER(20) NOT NULL,
-    `read_bytes` INTEGER(20) NOT NULL,
+    `write_bytes` bigint NOT NULL,
+    `read_bytes` bigint NOT NULL,
     `date` TIMESTAMP NOT NULL,
     `date_str` VARCHAR(20) NOT NULL,
     `create_time` TIMESTAMP NOT NULL
@@ -199,8 +203,8 @@ CREATE TABLE IF NOT EXISTS `flow_report_day` (
     `id` INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT,
     `user_id` INTEGER(20) NOT NULL,
     `license_id` INTEGER(20) NOT NULL,
-    `write_bytes` INTEGER(20) NOT NULL,
-    `read_bytes` INTEGER(20) NOT NULL,
+    `write_bytes` bigint NOT NULL,
+    `read_bytes` bigint NOT NULL,
     `date` TIMESTAMP NOT NULL,
     `date_str` VARCHAR(20) NOT NULL,
     `create_time` TIMESTAMP NOT NULL
@@ -215,8 +219,8 @@ CREATE TABLE IF NOT EXISTS `flow_report_month` (
     `id` INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT,
     `user_id` INTEGER(20) NOT NULL,
     `license_id` INTEGER(20) NOT NULL,
-    `write_bytes` INTEGER(20) NOT NULL,
-    `read_bytes` INTEGER(20) NOT NULL,
+    `write_bytes` bigint NOT NULL,
+    `read_bytes` bigint NOT NULL,
     `date` TIMESTAMP NOT NULL,
     `date_str` VARCHAR(20) NOT NULL,
     `create_time` TIMESTAMP NOT NULL
diff --git a/neutrino-proxy-server/src/main/resources/sql/h2/update/UPDATE-20231207.SQL b/neutrino-proxy-server/src/main/resources/sql/h2/update/UPDATE-20231215.SQL
similarity index 72%
rename from neutrino-proxy-server/src/main/resources/sql/h2/update/UPDATE-20231207.SQL
rename to neutrino-proxy-server/src/main/resources/sql/h2/update/UPDATE-20231215.SQL
index 42097044..aaaa137b 100644
--- a/neutrino-proxy-server/src/main/resources/sql/h2/update/UPDATE-20231207.SQL
+++ b/neutrino-proxy-server/src/main/resources/sql/h2/update/UPDATE-20231215.SQL
@@ -27,4 +27,12 @@ CREATE TABLE IF NOT EXISTS `security_rule` (
     PRIMARY KEY (`id`)
 );
 CREATE INDEX IF NOT EXISTS I_security_rule_group_id ON security_rule(group_id);
+
+# port_mapping表增加字段
 ALTER TABLE `port_mapping` ADD COLUMN `security_group_id` INTEGER DEFAULT 0;
+ALTER TABLE `port_mapping` ADD COLUMN `up_limit_rate` varchar(20) DEFAULT NULL;
+ALTER TABLE `port_mapping` ADD COLUMN `down_limit_rate` varchar(20) DEFAULT NULL;
+
+# license表增加字段
+ALTER TABLE `license` ADD COLUMN `up_limit_rate` varchar(20) DEFAULT NULL;
+ALTER TABLE `license` ADD COLUMN `down_limit_rate` varchar(20) DEFAULT NULL;
diff --git a/neutrino-proxy-server/src/main/resources/sql/mariadb/init-structure.sql b/neutrino-proxy-server/src/main/resources/sql/mariadb/init-structure.sql
index 5f65a7f5..76300f97 100644
--- a/neutrino-proxy-server/src/main/resources/sql/mariadb/init-structure.sql
+++ b/neutrino-proxy-server/src/main/resources/sql/mariadb/init-structure.sql
@@ -87,6 +87,8 @@ CREATE TABLE IF NOT EXISTS `license` (
     `name` varchar(50) NOT NULL COMMENT 'license名称',
     `key` varchar(100) NOT NULL COMMENT 'license key',
     `user_id` int NOT NULL COMMENT '用户ID',
+    `up_limit_rate` varchar(20) DEFAULT NULL COMMENT '上传限速',
+    `down_limit_rate` varchar(20) DEFAULT NULL COMMENT '下载限速',
     `is_online` int NOT NULL COMMENT '是否在线（1、在线 2、离线）',
     `enable` int NOT NULL COMMENT '是否启用(1、启用 2、禁用)',
     `create_time` datetime(3) NOT NULL COMMENT '创建时间',
@@ -104,6 +106,8 @@ CREATE TABLE IF NOT EXISTS `port_mapping` (
     `server_port` int NOT NULL COMMENT '服务端端口',
     `client_ip` varchar(20) NOT NULL COMMENT '客户端IP',
     `client_port` int NOT NULL COMMENT '客户端端口',
+    `up_limit_rate` varchar(20) DEFAULT NULL COMMENT '上传限速',
+    `down_limit_rate` varchar(20) DEFAULT NULL COMMENT '下载限速',
     `is_online` int NOT NULL COMMENT '是否在线（1、在线 2、离线）',
     `description` varchar(100) DEFAULT NULL COMMENT '描述',
     `proxy_responses` int NOT NULL DEFAULT 0 COMMENT '代理响应数据包数量',
diff --git a/neutrino-proxy-server/src/main/resources/sql/mysql/init-structure.sql b/neutrino-proxy-server/src/main/resources/sql/mysql/init-structure.sql
index 6a38bfac..d61fb9ac 100644
--- a/neutrino-proxy-server/src/main/resources/sql/mysql/init-structure.sql
+++ b/neutrino-proxy-server/src/main/resources/sql/mysql/init-structure.sql
@@ -87,6 +87,8 @@ CREATE TABLE IF NOT EXISTS `license` (
     `name` varchar(50) NOT NULL COMMENT 'license名称',
     `key` varchar(100) NOT NULL COMMENT 'license key',
     `user_id` int NOT NULL COMMENT '用户ID',
+    `up_limit_rate` varchar(20) DEFAULT NULL COMMENT '上传限速',
+    `down_limit_rate` varchar(20) DEFAULT NULL COMMENT '下载限速',
     `is_online` int NOT NULL COMMENT '是否在线（1、在线 2、离线）',
     `enable` int NOT NULL COMMENT '是否启用(1、启用 2、禁用)',
     `create_time` datetime(3) NOT NULL COMMENT '创建时间',
@@ -104,6 +106,8 @@ CREATE TABLE IF NOT EXISTS `port_mapping` (
     `server_port` int NOT NULL COMMENT '服务端端口',
     `client_ip` varchar(20) NOT NULL COMMENT '客户端IP',
     `client_port` int NOT NULL COMMENT '客户端端口',
+    `up_limit_rate` varchar(20) DEFAULT NULL COMMENT '上传限速',
+    `down_limit_rate` varchar(20) DEFAULT NULL COMMENT '下载限速',
     `is_online` int NOT NULL COMMENT '是否在线（1、在线 2、离线）',
     `description` varchar(100) DEFAULT NULL COMMENT '描述',
     `proxy_responses` int NOT NULL DEFAULT 0 COMMENT '代理响应数据包数量',
diff --git a/neutrino-proxy-server/src/main/resources/sql/mysql/update/UPDATE-20231207.SQL b/neutrino-proxy-server/src/main/resources/sql/mysql/update/UPDATE-20231215.SQL
similarity index 78%
rename from neutrino-proxy-server/src/main/resources/sql/mysql/update/UPDATE-20231207.SQL
rename to neutrino-proxy-server/src/main/resources/sql/mysql/update/UPDATE-20231215.SQL
index 649b2a6f..fc454066 100644
--- a/neutrino-proxy-server/src/main/resources/sql/mysql/update/UPDATE-20231207.SQL
+++ b/neutrino-proxy-server/src/main/resources/sql/mysql/update/UPDATE-20231215.SQL
@@ -30,3 +30,9 @@ CREATE TABLE IF NOT EXISTS `security_rule` (
 
 # port_mapping表增加字段
 ALTER TABLE `port_mapping` ADD COLUMN `security_group_id` int DEFAULT 0 COMMENT '安全组Id';
+ALTER TABLE `port_mapping` ADD COLUMN `up_limit_rate` varchar(20) DEFAULT NULL COMMENT '上传限速';
+ALTER TABLE `port_mapping` ADD COLUMN `down_limit_rate` varchar(20) DEFAULT NULL COMMENT '下载限速';
+
+# license表增加字段
+ALTER TABLE `license` ADD COLUMN `up_limit_rate` varchar(20) DEFAULT NULL COMMENT '上传限速';
+ALTER TABLE `license` ADD COLUMN `down_limit_rate` varchar(20) DEFAULT NULL COMMENT '下载限速';