diff --git a/application/adminapi/controller/Admin.php b/application/adminapi/controller/Admin.php
index 9e25dfd..73c43d1 100644
--- a/application/adminapi/controller/Admin.php
+++ b/application/adminapi/controller/Admin.php
@@ -196,10 +196,9 @@ class Admin extends adminApi
                         return  V(0,"失败", []);
                     }
 
-                    // 先移除所有权限
-                    model('admin/AuthGroupAccess')->where('uid', $params['id'])->delete();
-
                     if(!empty($group)){
+                        // 先移除所有权限
+                        model('admin/AuthGroupAccess')->where('uid', $params['id'])->delete();
                         // 过滤不允许的组别,避免越权
                         $group = array_intersect($this->childrenGroupIds, $group);
                         if (!$group) {