diff --git a/application/admin/controller/auth/Admin.php b/application/admin/controller/auth/Admin.php
index a7dc6da6..614d5c00 100644
--- a/application/admin/controller/auth/Admin.php
+++ b/application/admin/controller/auth/Admin.php
@@ -129,7 +129,7 @@ class Admin extends Backend
                         exception(__("Please input correct password"));
                     }
                     $params['salt'] = Random::alnum();
-                    $params['password'] = md5(md5($params['password']) . $params['salt']);
+                    $params['password'] = $this->model->encryptPassword($params['password'], $params['salt']);
                     $params['avatar'] = '/assets/img/avatar.png'; //设置新管理员默认头像。
                     $result = $this->model->validate('Admin.add')->save($params);
                     if ($result === false) {
@@ -183,7 +183,7 @@ class Admin extends Backend
                             exception(__("Please input correct password"));
                         }
                         $params['salt'] = Random::alnum();
-                        $params['password'] = md5(md5($params['password']) . $params['salt']);
+                        $params['password'] = $this->model->encryptPassword($params['password'], $params['salt']);
                     } else {
                         unset($params['password'], $params['salt']);
                     }