diff --git a/application/admin/controller/Index.php b/application/admin/controller/Index.php
index fe560fb3..695f967b 100644
--- a/application/admin/controller/Index.php
+++ b/application/admin/controller/Index.php
@@ -15,8 +15,7 @@ use think\Validate;
  */
 class Index extends Backend
 {
-
-    protected $noNeedLogin = ['login'];
+    protected $noNeedLogin = ['login', 'logout'];
     protected $noNeedRight = ['index', 'logout'];
     protected $layout = '';
 
@@ -127,6 +126,12 @@ class Index extends Backend
      */
     public function logout()
     {
+        //先判断用户身份是否有效
+        $res = $this->auth->getUserInfo();
+        if (!$res){
+           Hook::listen("admin_logout_after", $this->request);
+            $this->success(__('Logout successful'), 'index/login');
+        }
         if ($this->request->isPost()) {
             $this->auth->logout();
             Hook::listen("admin_logout_after", $this->request);