diff --git a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/AmountService.java b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/AmountService.java
index 3a89fc20..51d38a8d 100644
--- a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/AmountService.java
+++ b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/AmountService.java
@@ -9,5 +9,5 @@ public interface AmountService {
 
     BigDecimal getAmount(Long userId);
 
-
+    BigDecimal getCashAmount(Long userId);
 }
diff --git a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/AmountServiceImpl.java b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/AmountServiceImpl.java
index 1b3985e2..c72398c6 100644
--- a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/AmountServiceImpl.java
+++ b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/AmountServiceImpl.java
@@ -27,6 +27,9 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.stream.Collectors;
 
+import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
+import static cn.iocoder.yudao.module.member.enums.ErrorCodeConstants.USER_NOT_EXISTS;
+
 
 /**
  * 金额操作 Service 实现类
@@ -66,7 +69,18 @@ public class AmountServiceImpl implements AmountService {
     @Override
     public BigDecimal getAmount(Long userId) {
         MemberUserDO memberUserDO = userMapper.selectById(userId);
+        if (memberUserDO == null) {
+            throw exception(USER_NOT_EXISTS);
+        }
         return memberUserDO.getMoney();
     }
 
+    @Override
+    public BigDecimal getCashAmount(Long userId) {
+        MemberUserDO memberUserDO = userMapper.selectById(userId);
+        if (memberUserDO == null) {
+            throw exception(USER_NOT_EXISTS);
+        }
+        return memberUserDO.getCashAmount();
+    }
 }
diff --git a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/DeductionService.java b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/DeductionService.java
index 24e06653..2783ba4f 100644
--- a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/DeductionService.java
+++ b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/DeductionService.java
@@ -21,4 +21,9 @@ public interface DeductionService {
      * 微信提现
      */
     void wxDraw(Integer amount, Long userId);
+
+    /**
+     * 退款
+     */
+    void refund(Long userId,BigDecimal money,DishOrderDO dishOrderDO);
 }
diff --git a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/DeductionServiceImpl.java b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/DeductionServiceImpl.java
index 480b0c9c..6c9a24d9 100644
--- a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/DeductionServiceImpl.java
+++ b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/service/amount/DeductionServiceImpl.java
@@ -7,6 +7,7 @@ import cn.iocoder.yudao.module.member.controller.admin.business.vo.StatisticsVo;
 import cn.iocoder.yudao.module.member.dal.dataobject.card.CardDO;
 import cn.iocoder.yudao.module.member.dal.dataobject.order.DishOrderDO;
 import cn.iocoder.yudao.module.member.dal.dataobject.user.MemberUserDO;
+import cn.iocoder.yudao.module.member.dal.mysql.order.DishOrderMapper;
 import cn.iocoder.yudao.module.member.dal.mysql.user.MemberUserMapper;
 import cn.iocoder.yudao.module.member.enums.CostTypeEnum;
 import cn.iocoder.yudao.module.member.enums.TimePeriodEnum;
@@ -247,5 +248,79 @@ public class DeductionServiceImpl implements DeductionService {
         cardDO.setCashAmount(cashNewAmount);
         cardService.insertOne(cardDO);
     }
+
+    @Override
+    public void refund(Long userId, BigDecimal money, DishOrderDO dishOrderDO) {
+        //获取最新余额
+        BigDecimal newMoney2;
+        BigDecimal wxNewMoney;
+        BigDecimal giftNewMoney;
+        BigDecimal cashNewAmount;
+
+        synchronized (userId){
+            MemberUserDO user = userService.getUser(userId);
+            BigDecimal oldMoney = user.getMoney();
+
+            user.setMoney(oldMoney.add(money));
+
+            BigDecimal wxAmount = user.getWxAmount();
+            BigDecimal cashAmount = user.getCashAmount();
+            BigDecimal giftAmount = user.getGiftAmount();
+
+            BigDecimal dishWxAmount = dishOrderDO.getWxAmount();
+            BigDecimal dishCashAmount = dishOrderDO.getCashAmount();
+            BigDecimal dishGiftAmount = dishOrderDO.getGiftAmount();
+
+            BigDecimal newMoney = money;
+            if(oldMoney.compareTo(BigDecimal.ZERO)<0){
+                newMoney = user.getMoney();
+            }
+
+
+            if (user.getMoney().compareTo(BigDecimal.ZERO) <= 0) {
+                user.setWxAmount(BigDecimal.ZERO);
+                user.setGiftAmount(BigDecimal.ZERO);
+                user.setCashAmount(BigDecimal.ZERO);
+            } else {
+                if (newMoney.compareTo(dishGiftAmount) <= 0) {
+                    user.setGiftAmount(giftAmount.add(newMoney));
+                } else {
+                    user.setGiftAmount(giftAmount.add(dishGiftAmount));
+                    BigDecimal money1 = newMoney.subtract(dishGiftAmount);
+
+                    if (money1.compareTo(dishCashAmount) <= 0) {
+                        user.setCashAmount(cashAmount.add(money1));
+                    } else {
+                        user.setCashAmount(cashAmount.add(dishCashAmount));
+                        BigDecimal money2 = money1.subtract(dishCashAmount);
+                        if (money2.compareTo(dishWxAmount) <= 0) {
+                            user.setWxAmount(wxAmount.add(money2));
+                        } else {
+                            user.setWxAmount(wxAmount.add(dishWxAmount));
+                        }
+
+                    }
+                }
+            }
+            userService.updateById(user);
+            newMoney2 = user.getMoney();
+            wxNewMoney = user.getWxAmount();
+            giftNewMoney = user.getGiftAmount();
+            cashNewAmount = user.getCashAmount();
+
+        }
+
+        CardDO cardDO = new CardDO();
+        cardDO.setUserId(userId);
+        cardDO.setFlag(CardDO.ADD);
+        cardDO.setChangeMoney(money);
+        cardDO.setType(CostTypeEnum.REFUND.getCode());
+        cardDO.setWxAmount(wxNewMoney);
+        cardDO.setGiftAmount(giftNewMoney);
+        cardDO.setMoney(newMoney2);
+        cardDO.setCashAmount(cashNewAmount);
+
+        cardService.insertOne(cardDO);
+    }
 }