diff --git a/spug_api/apps/account/views.py b/spug_api/apps/account/views.py
index 6a4e43d..53ea371 100644
--- a/spug_api/apps/account/views.py
+++ b/spug_api/apps/account/views.py
@@ -50,6 +50,8 @@ class UserView(View):
             if form.get('password'):
                 form.token_expired = 0
                 form.password_hash = User.make_password(form.pop('password'))
+            if User.objects.filter(username=form.username, deleted_by_id__isnull=True).exclude(id=form.id).exists():
+                return json_response(error=f'已存在登录名为【{form.username}】的用户')
             User.objects.filter(pk=form.pop('id')).update(**form)
         return json_response(error=error)