diff --git a/app/controller/api/SignController.php b/app/controller/api/SignController.php
index e7fc7d4..c888323 100644
--- a/app/controller/api/SignController.php
+++ b/app/controller/api/SignController.php
@@ -64,6 +64,9 @@ class SignController
         if(!UserPhoneLogDao::getOnlineTimeByPhoneTodayId($user_id)){
             return ApiResponseApp::error([],'挂机时长没有超过6小时，暂不能签到');
         }
+        if(SignDao::search_Sign_today($user_id)==1){
+            return ApiResponseApp::error([],'今天已经签到');
+        }
         SignDao::Sign($user_id);
         return ApiResponseApp::success([]);
     }