diff --git a/extend/Kuaidi100/Kuaidi.php b/extend/Kuaidi100/Kuaidi.php
index 43c1309..62801c7 100644
--- a/extend/Kuaidi100/Kuaidi.php
+++ b/extend/Kuaidi100/Kuaidi.php
@@ -87,8 +87,12 @@ class Kuaidi
             throw new BusinessException(HttpEnumCode::getMessage(HttpEnumCode::SERVER_ERROR));
         }
 
-        dump($body);
         if ($body['returnCode'] != 200) {
+            // 重复订阅-不做处理
+            if ($body['returnCode'] == 501){
+                return $body;
+            }
+
             // 请求失败
             if (!empty($body['message'])) {
                 throw new BusinessException($body['message']);