diff --git a/app/dingtalk-callback/page.tsx b/app/dingtalk-callback/page.tsx
index 1f5c1d1b..91e09c0a 100644
--- a/app/dingtalk-callback/page.tsx
+++ b/app/dingtalk-callback/page.tsx
@@ -3,6 +3,7 @@
 import { useEffect, useState, Suspense } from 'react'
 import { useRouter, useSearchParams } from 'next/navigation'
 import { signIn } from 'next-auth/react'
+import { normalizeInternalRedirectPath } from '@/lib/safe-redirect'
 
 function DingtalkCallbackContent() {
   const router = useRouter()
@@ -22,9 +23,11 @@ function DingtalkCallbackContent() {
 
         // 解析state参数，获取原始访问地址
         let originUrl = ''
+        let redirectPath = '/'
         try {
           const stateData = JSON.parse(decodeURIComponent(state))
           originUrl = stateData.origin || ''
+          redirectPath = normalizeInternalRedirectPath(stateData.redirect)
         } catch (e) {
           // state解析失败，忽略
         }
@@ -91,7 +94,8 @@ function DingtalkCallbackContent() {
             {
               type: 'dingtalk_login_success',
               userInfo: data.user,
-              originUrl: originUrl // 携带原始地址
+              originUrl: originUrl, // 携带原始地址
+              redirectUrl: redirectPath,
             },
             '*'
           )
@@ -101,7 +105,8 @@ function DingtalkCallbackContent() {
             {
               type: 'dingtalk_login_success',
               userInfo: data.user,
-              originUrl: originUrl // 携带原始地址
+              originUrl: originUrl, // 携带原始地址
+              redirectUrl: redirectPath,
             },
             '*'
           )
@@ -111,7 +116,7 @@ function DingtalkCallbackContent() {
             // 从内网来的：不在这里创建session，跳转回内网后由内网页面创建
             setMessage('登录成功，正在返回内网...')
             // 将用户信息作为参数传递，让内网页面创建session
-            window.location.href = `${originUrl}/login?dingtalk_success=true&email=${encodeURIComponent(data.user.email)}`
+            window.location.href = `${originUrl}/login?dingtalk_success=true&email=${encodeURIComponent(data.user.email)}&redirect=${encodeURIComponent(redirectPath)}`
           } else {
             // 从外网来的：直接创建session并跳转
             const signInResult = await signIn('credentials', {
@@ -125,8 +130,7 @@ function DingtalkCallbackContent() {
             }
 
             setTimeout(() => {
-              router.push('/')
-              router.refresh()
+              window.location.href = redirectPath
             }, 1000)
           }
         }
diff --git a/app/dingtalk-entry/route.ts b/app/dingtalk-entry/route.ts
new file mode 100644
index 00000000..f738fefe
--- /dev/null
+++ b/app/dingtalk-entry/route.ts
@@ -0,0 +1,33 @@
+import { NextResponse, type NextRequest } from 'next/server'
+import { getToken } from 'next-auth/jwt'
+import {
+  getAuthSessionCookieCandidates,
+  resolveSecureAuthCookieFromRequest,
+} from '@/lib/auth-cookie'
+import { buildDingtalkAutoLoginPath, normalizeInternalRedirectPath } from '@/lib/safe-redirect'
+
+async function resolveCurrentToken(request: NextRequest) {
+  const preferredSecureCookie = resolveSecureAuthCookieFromRequest(request)
+  const cookieCandidates = getAuthSessionCookieCandidates(preferredSecureCookie)
+
+  for (const cookieName of cookieCandidates) {
+    const token = await getToken({
+      req: request,
+      secret: process.env.NEXTAUTH_SECRET,
+      cookieName,
+      secureCookie: cookieName.startsWith('__Secure-'),
+    })
+
+    if (token) return token
+  }
+
+  return null
+}
+
+export async function GET(request: NextRequest) {
+  const redirectPath = normalizeInternalRedirectPath(request.nextUrl.searchParams.get('redirect'))
+  const token = await resolveCurrentToken(request)
+  const nextPath = token ? redirectPath : buildDingtalkAutoLoginPath(redirectPath)
+
+  return NextResponse.redirect(new URL(nextPath, request.url))
+}
diff --git a/app/login/page.tsx b/app/login/page.tsx
index a3e93a74..9e40c122 100644
--- a/app/login/page.tsx
+++ b/app/login/page.tsx
@@ -8,6 +8,7 @@ import Link from 'next/link'
 import { ensureHttpsUrl } from '@/lib/url-rewrite'
 import { parseApiError } from '@/lib/error-handler'
 import { getAllowedPublicAppOrigins, getPublicAppOrigin } from '@/lib/public-app-url'
+import { normalizeInternalRedirectPath } from '@/lib/safe-redirect'
 
 const DEFAULT_LOGIN_LOGO_URL = '/api/favicon'
 
@@ -30,6 +31,11 @@ export default function LoginPage() {
   const dingtalkCallbackOrigin =
     process.env.NEXT_PUBLIC_DINGTALK_CALLBACK_ORIGIN?.trim() || publicAppOrigin
 
+  const getLoginRedirectPath = () => {
+    if (typeof window === 'undefined') return '/'
+    return normalizeInternalRedirectPath(new URLSearchParams(window.location.search).get('redirect'))
+  }
+
   // 加载系统设置
   useEffect(() => {
     const loadSettings = async () => {
@@ -65,15 +71,18 @@ export default function LoginPage() {
     const dingtalkRedirect = urlParams.get('dingtalk_redirect')
     
     if (dingtalkRedirect === 'true') {
+      const redirectPath = normalizeInternalRedirectPath(urlParams.get('redirect'))
       console.log('🔄 检测到内网钉钉登录请求，自动触发登录...')
       // 清理URL参数
-      window.history.replaceState({}, '', '/login')
+      window.history.replaceState({}, '', `/login?redirect=${encodeURIComponent(redirectPath)}`)
       // 等待页面加载完成后触发钉钉登录
       const timer = setTimeout(() => {
-        document.getElementById('dingtalk-login-btn')?.click()
+        handleDingtalkLogin({ redirectPath, useCurrentWindow: true })
       }, 500)
       return () => clearTimeout(timer)
     }
+    // 自动钉钉入口只应在页面首次打开时判断一次，后续渲染不重复拉起授权。
+    // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [])
 
   // 处理钉钉登录成功后的自动登录（内网场景）
@@ -82,6 +91,7 @@ export default function LoginPage() {
       const urlParams = new URLSearchParams(window.location.search)
       const dingtalkSuccess = urlParams.get('dingtalk_success')
       const userEmail = urlParams.get('email')
+      const redirectPath = normalizeInternalRedirectPath(urlParams.get('redirect'))
 
       if (dingtalkSuccess === 'true' && userEmail) {
         setLoading(true)
@@ -98,8 +108,7 @@ export default function LoginPage() {
           } else {
             // 清除 URL 参数并跳转到首页
             window.history.replaceState({}, '', '/login')
-            router.push('/')
-            router.refresh()
+            window.location.href = `${window.location.origin}${redirectPath}`
           }
         } catch (error) {
           console.error('自动登录失败:', error)
@@ -150,7 +159,7 @@ export default function LoginPage() {
         console.log('🔄 开始跳转到首页...')
         // 使用 window.location.href 强制跳转，确保跳转生效
         // 使用完整的 URL 可以确保 cookie 正确传递
-        window.location.href = window.location.origin + '/'
+        window.location.href = window.location.origin + getLoginRedirectPath()
         // 注意：跳转后不需要 setLoading(false)，因为页面会刷新
         return
       } else {
@@ -166,20 +175,32 @@ export default function LoginPage() {
     }
   }
   
-  const handleDingtalkLogin = () => {
+  const handleDingtalkLogin = (options?: { redirectPath?: string; useCurrentWindow?: boolean }) => {
     const redirectUrl = `${dingtalkCallbackOrigin}/dingtalk-callback`
+    const redirectPath = normalizeInternalRedirectPath(options?.redirectPath ?? getLoginRedirectPath())
     
     // 在state中携带原始访问地址信息（用于登录后跳转）
     const currentOrigin = window.location.origin
-    const stateData = JSON.stringify({ origin: currentOrigin })
+    const stateData = JSON.stringify({ origin: currentOrigin, redirect: redirectPath })
     
-    const dingtalkAuthUrl = `https://login.dingtalk.com/oauth2/auth?` +
-      `redirect_uri=${encodeURIComponent(redirectUrl)}` +
-      `&client_id=${DINGTALK_CLIENT_ID}` +
-      `&scope=openid` +
-      `&response_type=code` +
-      `&state=${encodeURIComponent(stateData)}` +
-      `&prompt=consent`
+    const params = new URLSearchParams({
+      redirect_uri: redirectUrl,
+      client_id: DINGTALK_CLIENT_ID,
+      scope: 'openid',
+      response_type: 'code',
+      state: stateData,
+    })
+
+    if (!options?.useCurrentWindow) {
+      params.set('prompt', 'consent')
+    }
+
+    const dingtalkAuthUrl = `https://login.dingtalk.com/oauth2/auth?${params.toString()}`
+
+    if (options?.useCurrentWindow) {
+      window.location.href = dingtalkAuthUrl
+      return
+    }
     
     // 使用新窗口打开钉钉登录，避免iframe的cookie限制问题
     // 新窗口可以正常访问cookie，解决"授权失败"的问题
@@ -224,16 +245,16 @@ export default function LoginPage() {
             await new Promise(resolve => setTimeout(resolve, 100))
             // 登录成功，智能跳转
             const originUrl = event.data.originUrl
+            const targetPath = normalizeInternalRedirectPath(event.data.redirectUrl ?? redirectPath)
             if (originUrl && originUrl.includes('192.168.')) {
               // 从内网发起的登录，跳回内网
-              window.location.href = originUrl
+              window.location.href = `${originUrl}${targetPath}`
             } else if (window.location.hostname.includes('192.168.')) {
               // 当前在内网，刷新页面
-              window.location.href = window.location.origin
+              window.location.href = `${window.location.origin}${targetPath}`
             } else {
-              // 外网访问，跳转到首页
-              router.push('/')
-              router.refresh()
+              // 外网访问，跳转到原始业务页面
+              window.location.href = `${window.location.origin}${targetPath}`
             }
           }
         } catch (error) {
@@ -348,7 +369,7 @@ export default function LoginPage() {
             <button
               id="dingtalk-login-btn"
               type="button"
-              onClick={handleDingtalkLogin}
+              onClick={() => handleDingtalkLogin()}
               className="w-full flex items-center justify-center gap-3 px-4 py-3 border border-gray-300 rounded-xl shadow-sm bg-white hover:bg-gray-50 transition-colors"
             >
               <svg style={{ width: '28px', height: '28px' }} viewBox="0 0 1024 1024">
diff --git a/lib/__tests__/safe-redirect.test.ts b/lib/__tests__/safe-redirect.test.ts
new file mode 100644
index 00000000..b96f749a
--- /dev/null
+++ b/lib/__tests__/safe-redirect.test.ts
@@ -0,0 +1,25 @@
+import {
+  buildDingtalkAutoLoginPath,
+  buildDingtalkEntryPath,
+  normalizeInternalRedirectPath,
+} from '@/lib/safe-redirect'
+
+describe('safe redirect helpers', () => {
+  test('只允许站内路径作为登录后跳转目标', () => {
+    expect(normalizeInternalRedirectPath('/performance-survey/survey/1?targetId=2')).toBe(
+      '/performance-survey/survey/1?targetId=2',
+    )
+    expect(normalizeInternalRedirectPath('https://evil.example/a')).toBe('/')
+    expect(normalizeInternalRedirectPath('//evil.example/a')).toBe('/')
+    expect(normalizeInternalRedirectPath('javascript:alert(1)')).toBe('/')
+  })
+
+  test('生成钉钉入口和自动登录入口时会编码原始业务页', () => {
+    expect(buildDingtalkEntryPath('/performance-survey?tab=todo')).toBe(
+      '/dingtalk-entry?redirect=%2Fperformance-survey%3Ftab%3Dtodo',
+    )
+    expect(buildDingtalkAutoLoginPath('/performance-survey/results/1')).toBe(
+      '/login?dingtalk_redirect=true&redirect=%2Fperformance-survey%2Fresults%2F1',
+    )
+  })
+})
diff --git a/lib/performance-survey-notifications.ts b/lib/performance-survey-notifications.ts
index 72eec4f2..7cee4996 100644
--- a/lib/performance-survey-notifications.ts
+++ b/lib/performance-survey-notifications.ts
@@ -1,6 +1,7 @@
 import { randomUUID } from 'crypto'
 import { prisma } from '@/lib/prisma'
 import { getPublicAppOrigin } from '@/lib/public-app-url'
+import { buildDingtalkEntryPath } from '@/lib/safe-redirect'
 import { sendDingtalkWorkNotice } from '@/lib/dingtalk-client'
 
 const STATUS = {
@@ -43,7 +44,7 @@ function truncateBody(value: string | null | undefined, limit = 2000) {
 }
 
 function getSurveyUrl(path: string) {
-  return `${getPublicAppOrigin()}${path}`
+  return `${getPublicAppOrigin()}${buildDingtalkEntryPath(path)}`
 }
 
 export function ensurePerformanceSurveyNotificationWorkerStarted() {
diff --git a/lib/safe-redirect.ts b/lib/safe-redirect.ts
new file mode 100644
index 00000000..afe9c1c1
--- /dev/null
+++ b/lib/safe-redirect.ts
@@ -0,0 +1,25 @@
+export function normalizeInternalRedirectPath(value: unknown, fallback = '/') {
+  const raw = String(value ?? '').trim()
+  if (!raw) return fallback
+
+  if (!raw.startsWith('/') || raw.startsWith('//')) {
+    return fallback
+  }
+
+  try {
+    const parsed = new URL(raw, 'https://internal.local')
+    return `${parsed.pathname}${parsed.search}${parsed.hash}`
+  } catch {
+    return fallback
+  }
+}
+
+export function buildDingtalkAutoLoginPath(redirectPath: unknown) {
+  const target = normalizeInternalRedirectPath(redirectPath)
+  return `/login?dingtalk_redirect=true&redirect=${encodeURIComponent(target)}`
+}
+
+export function buildDingtalkEntryPath(redirectPath: unknown) {
+  const target = normalizeInternalRedirectPath(redirectPath)
+  return `/dingtalk-entry?redirect=${encodeURIComponent(target)}`
+}