diff --git a/src/app/admin/page.tsx b/src/app/admin/page.tsx
index e7a8217..31134b0 100644
--- a/src/app/admin/page.tsx
+++ b/src/app/admin/page.tsx
@@ -13372,6 +13372,7 @@ const LiveSourceConfig = ({
     useState<LiveDataSource | null>(null);
   const [orderChanged, setOrderChanged] = useState(false);
   const [isRefreshing, setIsRefreshing] = useState(false);
+  const [refreshIntervalHours, setRefreshIntervalHours] = useState(12);
   const [newLiveSource, setNewLiveSource] = useState<LiveDataSource>({
     name: '',
     key: '',
@@ -13401,6 +13402,7 @@ const LiveSourceConfig = ({
   useEffect(() => {
     if (config?.LiveConfig) {
       setLiveSources(config.LiveConfig);
+      setRefreshIntervalHours(config.LiveRefreshIntervalHours || 12);
       // 进入时重置 orderChanged
       setOrderChanged(false);
     }
@@ -13495,6 +13497,36 @@ const LiveSourceConfig = ({
   };
 
   // 刷新直播源
+  const handleSaveRefreshInterval = () => {
+    withLoading('saveLiveRefreshInterval', async () => {
+      if (!config) return;
+
+      const response = await fetch('/api/admin/config', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({
+          ...config,
+          LiveRefreshIntervalHours: Math.max(1, refreshIntervalHours || 12),
+        }),
+      });
+
+      if (!response.ok) {
+        const data = await response.json().catch(() => ({}));
+        throw new Error(data.error || `保存失败: ${response.status}`);
+      }
+
+      await refreshConfig();
+      showAlert({
+        type: 'success',
+        title: '保存成功',
+        message: '电视直播刷新间隔已保存',
+        timer: 2000,
+      });
+    }).catch((err) => {
+      showError(err instanceof Error ? err.message : '保存失败', showAlert);
+    });
+  };
+
   const handleRefreshLiveSources = async () => {
     if (isRefreshing) return;
 
@@ -13738,11 +13770,37 @@ const LiveSourceConfig = ({
   return (
     <div className='space-y-6'>
       {/* 添加直播源表单 */}
-      <div className='flex items-center justify-between'>
-        <h4 className='text-sm font-medium text-gray-700 dark:text-gray-300'>
-          直播源列表
-        </h4>
-        <div className='flex items-center space-x-2'>
+      <div className='space-y-4'>
+        <div className='flex items-end justify-between gap-3'>
+          <div className='flex items-end gap-2 flex-nowrap'>
+            <div className='min-w-0'>
+              <label className='block text-xs font-medium text-gray-700 dark:text-gray-300 mb-1 whitespace-nowrap'>
+                刷新间隔（小时）
+              </label>
+              <input
+                type='number'
+                min='1'
+                value={refreshIntervalHours}
+                onChange={(e) => setRefreshIntervalHours(Math.max(1, parseInt(e.target.value) || 12))}
+                className='px-3 py-1.5 border border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-800 text-gray-900 dark:text-gray-100 w-28 sm:w-40'
+              />
+            </div>
+            <button
+              onClick={handleSaveRefreshInterval}
+              disabled={isLoading('saveLiveRefreshInterval')}
+              className={`px-3 py-1.5 text-sm whitespace-nowrap shrink-0 ${
+                isLoading('saveLiveRefreshInterval') ? buttonStyles.disabled : buttonStyles.success
+              }`}
+            >
+              {isLoading('saveLiveRefreshInterval') ? '保存中...' : '保存间隔'}
+            </button>
+          </div>
+        </div>
+        <div className='flex items-center justify-between'>
+          <h4 className='text-sm font-medium text-gray-700 dark:text-gray-300'>
+            直播源列表
+          </h4>
+          <div className='flex items-center space-x-2'>
           <button
             onClick={handleRefreshLiveSources}
             disabled={isRefreshing || isLoading('refreshLiveSources')}
@@ -13766,6 +13824,7 @@ const LiveSourceConfig = ({
           >
             {showAddForm ? '取消' : '添加直播源'}
           </button>
+          </div>
         </div>
       </div>
 
diff --git a/src/app/api/cron/[password]/route.ts b/src/app/api/cron/[password]/route.ts
index 5fe463f..1017f5f 100644
--- a/src/app/api/cron/[password]/route.ts
+++ b/src/app/api/cron/[password]/route.ts
@@ -8,12 +8,17 @@ import { db, getStorage } from '@/lib/db';
 import { EmailService } from '@/lib/email.service';
 import {
   FavoriteUpdate,
-  MangaShelfUpdate,
   getBatchFavoriteUpdateEmailTemplate,
   getBatchMangaUpdateEmailTemplate,
+  MangaShelfUpdate,
 } from '@/lib/email.templates';
 import { fetchVideoDetail } from '@/lib/fetchVideoDetail';
-import { refreshLiveChannels } from '@/lib/live';
+import {
+  getLastGlobalLiveRefreshTime,
+  getLiveRefreshIntervalHours,
+  refreshLiveChannels,
+  setLastGlobalLiveRefreshTime,
+} from '@/lib/live';
 import { MangaChapter, MangaShelfItem } from '@/lib/manga.types';
 import { startOpenListRefresh } from '@/lib/openlist-refresh';
 import { getSuwayomiConfig, loginWithSimpleAuth, SuwayomiClient } from '@/lib/suwayomi.client';
@@ -236,6 +241,17 @@ async function cronJob() {
 
 async function refreshAllLiveChannels() {
   const config = await getConfig();
+  const refreshIntervalHours = getLiveRefreshIntervalHours(config.LiveRefreshIntervalHours);
+  const lastRefreshTime = getLastGlobalLiveRefreshTime();
+  const now = Date.now();
+  const intervalMs = refreshIntervalHours * 60 * 60 * 1000;
+  const timeSinceLastRefresh = now - lastRefreshTime;
+
+  if (lastRefreshTime > 0 && timeSinceLastRefresh < intervalMs) {
+    const remainingHours = Math.ceil((intervalMs - timeSinceLastRefresh) / (60 * 60 * 1000));
+    console.log(`跳过刷新电视直播：距离上次刷新仅 ${Math.floor(timeSinceLastRefresh / (60 * 60 * 1000))} 小时，还需等待 ${remainingHours} 小时`);
+    return;
+  }
 
   // 并发刷新所有启用的直播源
   const refreshPromises = (config.LiveConfig || [])
@@ -253,6 +269,8 @@ async function refreshAllLiveChannels() {
   // 等待所有刷新任务完成
   await Promise.all(refreshPromises);
 
+  setLastGlobalLiveRefreshTime(Date.now());
+
   // 保存配置
   await db.saveAdminConfig(config);
 }
diff --git a/src/lib/admin.types.ts b/src/lib/admin.types.ts
index 9c5992e..f41b7b4 100644
--- a/src/lib/admin.types.ts
+++ b/src/lib/admin.types.ts
@@ -97,6 +97,7 @@ export interface AdminConfig {
     from: 'config' | 'custom';
     disabled?: boolean;
   }[];
+  LiveRefreshIntervalHours?: number; // 电视直播全局刷新间隔（小时），默认12小时
   LiveConfig?: {
     key: string;
     name: string;
diff --git a/src/lib/config.ts b/src/lib/config.ts
index a423224..49d0b25 100644
--- a/src/lib/config.ts
+++ b/src/lib/config.ts
@@ -5,6 +5,17 @@ import { db } from '@/lib/db';
 import { AdminConfig } from './admin.types';
 
 const BUILTIN_DANMAKU_API_BASE = 'https://mtvpls-danmu.netlify.app/87654321';
+const DEFAULT_LIVE_REFRESH_INTERVAL_HOURS = 12;
+
+function normalizeLiveRefreshIntervalHours(refreshIntervalHours?: number): number {
+  const normalizedInterval = Number(refreshIntervalHours);
+
+  if (!Number.isFinite(normalizedInterval) || normalizedInterval <= 0) {
+    return DEFAULT_LIVE_REFRESH_INTERVAL_HOURS;
+  }
+
+  return Math.floor(normalizedInterval);
+}
 
 export interface ApiSite {
   key: string;
@@ -545,6 +556,7 @@ export function configSelfCheck(adminConfig: AdminConfig): AdminConfig {
   if (!adminConfig.LiveConfig || !Array.isArray(adminConfig.LiveConfig)) {
     adminConfig.LiveConfig = [];
   }
+  adminConfig.LiveRefreshIntervalHours = normalizeLiveRefreshIntervalHours(adminConfig.LiveRefreshIntervalHours);
 
   // 用户信息已迁移到新版数据库
   // 这里只保留站长用户用于兼容性，其他用户从数据库读取
diff --git a/src/lib/live.ts b/src/lib/live.ts
index f3f284c..d28e8df 100644
--- a/src/lib/live.ts
+++ b/src/lib/live.ts
@@ -5,6 +5,28 @@ import { db } from '@/lib/db';
 
 const defaultUA = 'AptvPlayer/1.4.10';
 
+export const DEFAULT_LIVE_REFRESH_INTERVAL_HOURS = 12;
+
+let lastGlobalLiveRefreshTime = 0;
+
+export function getLiveRefreshIntervalHours(refreshIntervalHours?: number): number {
+  const normalizedInterval = Number(refreshIntervalHours);
+
+  if (!Number.isFinite(normalizedInterval) || normalizedInterval <= 0) {
+    return DEFAULT_LIVE_REFRESH_INTERVAL_HOURS;
+  }
+
+  return Math.floor(normalizedInterval);
+}
+
+export function getLastGlobalLiveRefreshTime(): number {
+  return lastGlobalLiveRefreshTime;
+}
+
+export function setLastGlobalLiveRefreshTime(timestamp: number): void {
+  lastGlobalLiveRefreshTime = timestamp;
+}
+
 export interface LiveChannels {
   channelNumber: number;
   channels: {