diff --git a/webapp/controller/ShopController.class.php b/webapp/controller/ShopController.class.php
index e7a22d0b..67485c68 100644
--- a/webapp/controller/ShopController.class.php
+++ b/webapp/controller/ShopController.class.php
@@ -836,6 +836,11 @@ class ShopController extends BaseAuthedController
         $token_type = getReqVal('token_type', '');
         $goods_num = getReqVal('goods_num', 0);
 
+        if ($goods_num <= 1) {
+            $this->_rspErr(1, "goods_num parameter error, goods_num: {$goods_num}");
+            return;
+        }
+        
         $row = mt\ShopGoods::get($id);
 
         $goods_id = $row['goods_id'];