diff --git a/application/service/BuyService.php b/application/service/BuyService.php
index b9c36eb2c..19c5e331b 100755
--- a/application/service/BuyService.php
+++ b/application/service/BuyService.php
@@ -760,10 +760,10 @@ class BuyService
             }
 
             // 返回数据再次处理，防止插件处理不够完善
-            $result['base']['total_price'] = PriceNumberFormat($result['base']['total_price']);
-            $result['base']['actual_price'] = PriceNumberFormat($result['base']['actual_price']);
-            $result['base']['preferential_price'] = PriceNumberFormat($result['base']['preferential_price']);
-            $result['base']['increase_price'] = PriceNumberFormat($result['base']['increase_price']);
+            $result['base']['total_price'] = ($result['base']['total_price'] <= 0) ? 0.00 : PriceNumberFormat($result['base']['total_price']);
+            $result['base']['actual_price'] = ($result['base']['actual_price'] <= 0) ? 0.00 : PriceNumberFormat($result['base']['actual_price']);
+            $result['base']['preferential_price'] = ($result['base']['preferential_price'] <= 0) ? 0.00 : PriceNumberFormat($result['base']['preferential_price']);
+            $result['base']['increase_price'] = ($result['base']['increase_price'] <= 0) ? 0.00 : PriceNumberFormat($result['base']['increase_price']);
 
             return DataReturn('操作成功', 0, $result);
         }
diff --git a/application/service/OrderAftersaleService.php b/application/service/OrderAftersaleService.php
index 4fe9b8e9a..b8d84a076 100644
--- a/application/service/OrderAftersaleService.php
+++ b/application/service/OrderAftersaleService.php
@@ -1423,6 +1423,12 @@ class OrderAftersaleService
             {
                 $refund_price = $order['pay_price']-$history_refund_price;
             }
+
+            // 防止负数
+            if($refund_price <= 0)
+            {
+                $refund_price = 0.00;
+            }
         }
 
         return DataReturn('操作成功', 0, ['returned_quantity'=>$returned_quantity, 'refund_price'=>PriceNumberFormat($refund_price)]);