diff --git a/app/data/controller/api/Wxapp.php b/app/data/controller/api/Wxapp.php
index c0f80d273..86e68152e 100644
--- a/app/data/controller/api/Wxapp.php
+++ b/app/data/controller/api/Wxapp.php
@@ -43,10 +43,10 @@ class Wxapp extends Controller
      */
     protected function initialize()
     {
-        $option = sysdata('wxapp');
+        $wxapp = sysdata('wxapp');
         $this->config = [
-            'appid'      => $option['appid'] ?? '',
-            'appsecret'  => $option['appkey'] ?? '',
+            'appid'      => $wxapp['appid'] ?? '',
+            'appsecret'  => $wxapp['appkey'] ?? '',
             'cache_path' => with_path('runtime/wechat'),
         ];
         if (empty(UserAdminService::TYPES[$this->type]['auth'])) {
diff --git a/app/data/service/UserAdminService.php b/app/data/service/UserAdminService.php
index fc0b92f07..0a1534913 100644
--- a/app/data/service/UserAdminService.php
+++ b/app/data/service/UserAdminService.php
@@ -61,8 +61,12 @@ class UserAdminService extends Service
      */
     public static function set($map, array $data, string $type, bool $force = false): array
     {
-        unset($data['id'], $data['deleted'], $data['create_at']);
         $user = DataUser::mk()->where($map)->where(['deleted' => 0])->findOrEmpty();
+        unset($data['id'], $data['deleted'], $data['create_at']);
+        // 不更新无效的用户字段
+        if (!empty($user['nickname']) && $data['nickname'] === '微信用户') {
+            unset($data['nickname'], $data['headimg']);
+        }
         if (!$user->save($data)) throw new Exception("更新用户资料失败！");
         // 刷新用户认证令牌
         if ($force) UserTokenService::token($user['id'], $type);