diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index f5aceab..efb7df7 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -75,9 +75,15 @@ router.beforeEach(async (
   const title = to.meta.title as string
   document.title = `${title} - AI`
 
+  const authStore = useAuthStore()
+  // 用户已登录，重定向到dashboard
+  if (to.path === '/' && authStore.isLoggedIn) {
+    next({ name: 'Dashboard' })
+    return
+  }
+
   // 检查是否需要用户认证
   if (to.meta.requiresAuth) {
-    const authStore = useAuthStore()
     if (!authStore.isLoggedIn) {
       next('/')
       return
@@ -92,7 +98,7 @@ router.beforeEach(async (
     }
   }
 
-  next('/dashboard')
+  next()
 })
 
 export default router
\ No newline at end of file