diff --git a/config.example.json b/config.example.json
index 38ea13b..dd7aff1 100644
--- a/config.example.json
+++ b/config.example.json
@@ -1,3 +1,4 @@
 {
+  "cache_time": 7200,
   "api_site": {}
 }
diff --git a/src/app/api/detail/route.ts b/src/app/api/detail/route.ts
index 1b892a0..6ce5090 100644
--- a/src/app/api/detail/route.ts
+++ b/src/app/api/detail/route.ts
@@ -1,6 +1,6 @@
 import { NextResponse } from 'next/server';
 
-import { API_CONFIG, ApiSite, getApiSites } from '@/lib/config';
+import { API_CONFIG, ApiSite, getApiSites, getCacheTime } from '@/lib/config';
 
 const M3U8_PATTERN = /(https?:\/\/[^"'\s]+?\.m3u8)/g;
 
@@ -218,7 +218,13 @@ export async function GET(request: Request) {
 
   try {
     const result = await getVideoDetail(id, sourceCode);
-    return NextResponse.json(result);
+    const cacheTime = getCacheTime();
+
+    return NextResponse.json(result, {
+      headers: {
+        'Cache-Control': `public, max-age=${cacheTime}`,
+      },
+    });
   } catch (error) {
     return NextResponse.json(
       { error: (error as Error).message },
diff --git a/src/app/api/douban/route.ts b/src/app/api/douban/route.ts
index 39b40b1..75b45a6 100644
--- a/src/app/api/douban/route.ts
+++ b/src/app/api/douban/route.ts
@@ -1,5 +1,7 @@
 import { NextResponse } from 'next/server';
 
+import { getCacheTime } from '@/lib/config';
+
 interface DoubanItem {
   title: string;
   poster: string;
@@ -110,7 +112,12 @@ export async function GET(request: Request) {
       list: list,
     };
 
-    return NextResponse.json(response);
+    const cacheTime = getCacheTime();
+    return NextResponse.json(response, {
+      headers: {
+        'Cache-Control': `public, max-age=${cacheTime}`,
+      },
+    });
   } catch (error) {
     return NextResponse.json(
       { error: '获取豆瓣数据失败', details: (error as Error).message },
@@ -173,7 +180,12 @@ function handleTop250(pageStart: number) {
         list: movies,
       };
 
-      return NextResponse.json(apiResponse);
+      const cacheTime = getCacheTime();
+      return NextResponse.json(apiResponse, {
+        headers: {
+          'Cache-Control': `public, max-age=${cacheTime}`,
+        },
+      });
     })
     .catch((error) => {
       clearTimeout(timeoutId);
diff --git a/src/app/api/search/route.ts b/src/app/api/search/route.ts
index 7b8fbd2..081f35a 100644
--- a/src/app/api/search/route.ts
+++ b/src/app/api/search/route.ts
@@ -1,6 +1,6 @@
 import { NextResponse } from 'next/server';
 
-import { API_CONFIG, ApiSite, getApiSites } from '@/lib/config';
+import { API_CONFIG, ApiSite, getApiSites, getCacheTime } from '@/lib/config';
 
 import { getVideoDetail } from '../detail/route';
 
@@ -160,7 +160,15 @@ export async function GET(request: Request) {
   const query = searchParams.get('q');
 
   if (!query) {
-    return NextResponse.json({ results: [] });
+    const cacheTime = getCacheTime();
+    return NextResponse.json(
+      { results: [] },
+      {
+        headers: {
+          'Cache-Control': `public, max-age=${cacheTime}`,
+        },
+      }
+    );
   }
 
   const apiSites = getApiSites();
@@ -169,8 +177,16 @@ export async function GET(request: Request) {
   try {
     const results = await Promise.all(searchPromises);
     const flattenedResults = results.flat();
+    const cacheTime = getCacheTime();
 
-    return NextResponse.json({ results: flattenedResults });
+    return NextResponse.json(
+      { results: flattenedResults },
+      {
+        headers: {
+          'Cache-Control': `public, max-age=${cacheTime}`,
+        },
+      }
+    );
   } catch (error) {
     return NextResponse.json({ error: '搜索失败' }, { status: 500 });
   }
diff --git a/src/lib/config.ts b/src/lib/config.ts
index 905525a..417faa8 100644
--- a/src/lib/config.ts
+++ b/src/lib/config.ts
@@ -9,6 +9,7 @@ export interface ApiSite {
 }
 
 export interface Config {
+  cache_time?: number;
   api_site: {
     [key: string]: ApiSite;
   };
@@ -49,6 +50,11 @@ export function getConfig(): Config {
   return parsedConfig;
 }
 
+export function getCacheTime(): number {
+  const config = getConfig();
+  return config.cache_time || 300; // 默认5分钟缓存
+}
+
 export function getApiSites(): ApiSite[] {
   const config = getConfig();
   return Object.entries(config.api_site).map(([key, site]) => ({