diff --git a/src/main/java/com/chaozhanggui/system/cashierservice/service/PayService.java b/src/main/java/com/chaozhanggui/system/cashierservice/service/PayService.java
index 489a943..fa6c720 100644
--- a/src/main/java/com/chaozhanggui/system/cashierservice/service/PayService.java
+++ b/src/main/java/com/chaozhanggui/system/cashierservice/service/PayService.java
@@ -1297,7 +1297,7 @@ public class PayService {
             throw new MsgException("退款金额必须大于0");
         }
 
-        oldOrderInfo.setCouponInfoList(JSONObject.toJSONString(couponInfoDTO));
+        oldOrderInfo.setCouponInfoList(couponInfoDTO == null ? null : JSONObject.toJSONString(couponInfoDTO));
 
         // 保存剩余未退款的订单详情
         if (!remainOrderDetailList.isEmpty()) {
@@ -1500,8 +1500,10 @@ public class PayService {
             if (count == 0) {
                 returnCoupon(orderInfo, true);
                 // 返还积分
-                memberPointsService.addPoints(Long.valueOf(orderInfo.getMemberId()), orderInfo.getPointsNum(),
-                        "用户退款订单积分返还: " + orderInfo.getPointsNum() + "积分", Long.valueOf(orderInfo.getId()));
+                if (orderInfo.getMemberId() != null && orderInfo.getPointsNum() != null && orderInfo.getPointsNum() > 0) {
+                    memberPointsService.addPoints(Long.valueOf(orderInfo.getMemberId()), orderInfo.getPointsNum(),
+                            "用户退款订单积分返还: " + orderInfo.getPointsNum() + "积分", Long.valueOf(orderInfo.getId()));
+                }
             }
         }
         mPOrderInfoMapper.updateById(orderInfo);