diff --git a/src/main/java/com/chaozhanggui/system/cashierservice/service/impl/TbMemberPointsServiceImpl.java b/src/main/java/com/chaozhanggui/system/cashierservice/service/impl/TbMemberPointsServiceImpl.java
index caaff30..977d305 100644
--- a/src/main/java/com/chaozhanggui/system/cashierservice/service/impl/TbMemberPointsServiceImpl.java
+++ b/src/main/java/com/chaozhanggui/system/cashierservice/service/impl/TbMemberPointsServiceImpl.java
@@ -146,13 +146,13 @@ public class TbMemberPointsServiceImpl extends ServiceImpl<TbMemberPointsMapper,
         BigDecimal accountYuan = NumberUtil.div(accountPoints, equivalentPoints);
         // 下单最高抵扣比例
         BigDecimal maxDeductionRatio = basic.getMaxDeductionRatio();
-        // 计算订单最多可以抵扣多少元
-        BigDecimal orderYuan = NumberUtil.roundDown(NumberUtil.mul(orderAmount, NumberUtil.div(maxDeductionRatio, new BigDecimal("100"))), 2);
+        // 计算订单最多可以抵扣多少元，向下取整
+        BigDecimal orderYuan = NumberUtil.roundDown(NumberUtil.mul(orderAmount, NumberUtil.div(maxDeductionRatio, new BigDecimal("100"))), 0);
         // 积分余额足够
         if (NumberUtil.isGreaterOrEqual(accountYuan, orderYuan)) {
             dto.setMaxDeductionAmount(orderYuan);
         } else {
-            dto.setMaxDeductionAmount(NumberUtil.roundDown(accountYuan, 2));
+            dto.setMaxDeductionAmount(NumberUtil.roundDown(accountYuan, 0));
         }
         if (NumberUtil.isLess(dto.getMaxDeductionAmount(), BigDecimal.ONE)) {
             dto.setUnusableReason("积分不足1元，无法进行抵扣");
@@ -197,7 +197,7 @@ public class TbMemberPointsServiceImpl extends ServiceImpl<TbMemberPointsMapper,
             throw new MsgException(StrUtil.format("使用积分不能超过最大使用限制{}", core.getMaxUsablePoints()));
         }
         BigDecimal money = NumberUtil.mul(points, NumberUtil.div(BigDecimal.ONE, core.getEquivalentPoints()));
-        BigDecimal maxDeductionAmount = NumberUtil.roundDown(money, 2);
+        BigDecimal maxDeductionAmount = NumberUtil.roundDown(money, 0);
         if (NumberUtil.isGreater(maxDeductionAmount, core.getMaxDeductionAmount())) {
             return core.getMaxDeductionAmount();
         }