diff --git a/frontend/admin-web/next.config.ts b/frontend/admin-web/next.config.ts
index c0ea6e9..8f91376 100644
--- a/frontend/admin-web/next.config.ts
+++ b/frontend/admin-web/next.config.ts
@@ -2,6 +2,10 @@ import type { NextConfig } from 'next';
 
 const nextConfig: NextConfig = {
   output: 'standalone',
+  // 构建时注入时间戳，客户端和 /api/version 均使用此值判断版本是否更新
+  env: {
+    NEXT_PUBLIC_BUILD_TIME: String(Date.now()),
+  },
   reactStrictMode: true,
   images: {
     remotePatterns: [
diff --git a/frontend/admin-web/src/app/api/version/route.ts b/frontend/admin-web/src/app/api/version/route.ts
new file mode 100644
index 0000000..7837d9c
--- /dev/null
+++ b/frontend/admin-web/src/app/api/version/route.ts
@@ -0,0 +1,8 @@
+import { NextResponse } from 'next/server';
+
+export function GET() {
+  return NextResponse.json(
+    { buildTime: process.env.NEXT_PUBLIC_BUILD_TIME },
+    { headers: { 'Cache-Control': 'no-store' } },
+  );
+}
diff --git a/frontend/admin-web/src/app/providers.tsx b/frontend/admin-web/src/app/providers.tsx
index 77bf7b4..9e1d7b2 100644
--- a/frontend/admin-web/src/app/providers.tsx
+++ b/frontend/admin-web/src/app/providers.tsx
@@ -3,6 +3,7 @@
 import React, { useState } from 'react';
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { AuthProvider } from '@/lib/auth-context';
+import { DeployGuard } from '@/lib/deploy-guard';
 
 export function Providers({ children }: { children: React.ReactNode }) {
   const [queryClient] = useState(
@@ -20,7 +21,10 @@ export function Providers({ children }: { children: React.ReactNode }) {
 
   return (
     <QueryClientProvider client={queryClient}>
-      <AuthProvider>{children}</AuthProvider>
+      <AuthProvider>
+        <DeployGuard />
+        {children}
+      </AuthProvider>
     </QueryClientProvider>
   );
 }
diff --git a/frontend/admin-web/src/lib/deploy-guard.tsx b/frontend/admin-web/src/lib/deploy-guard.tsx
new file mode 100644
index 0000000..01d2804
--- /dev/null
+++ b/frontend/admin-web/src/lib/deploy-guard.tsx
@@ -0,0 +1,40 @@
+'use client';
+
+import { useEffect } from 'react';
+
+const BUILD_TIME = process.env.NEXT_PUBLIC_BUILD_TIME ?? '';
+const POLL_INTERVAL = 3 * 60 * 1000; // 3 分钟
+
+/**
+ * 部署版本守卫
+ *
+ * 每 3 分钟向 /api/version 轮询服务器 build 时间戳。
+ * 若与当前 bundle 的时间戳不一致，说明有新版本已部署，
+ * 立即静默刷新页面，用户无感知。
+ *
+ * 解决：重新部署后浏览器持有旧 bundle → Next.js Server Action
+ * ID 不匹配 → "Application error" 崩溃。
+ */
+export function DeployGuard() {
+  useEffect(() => {
+    if (!BUILD_TIME) return;
+
+    const check = async () => {
+      try {
+        const res = await fetch('/api/version', { cache: 'no-store' });
+        if (!res.ok) return;
+        const { buildTime } = await res.json();
+        if (buildTime && buildTime !== BUILD_TIME) {
+          window.location.reload();
+        }
+      } catch {
+        // 网络错误忽略，下次轮询再试
+      }
+    };
+
+    const timer = setInterval(check, POLL_INTERVAL);
+    return () => clearInterval(timer);
+  }, []);
+
+  return null;
+}