diff --git a/src/main/java/com/qs/serve/modules/oms/mapper/OmsVerSaleOrderMapper.java b/src/main/java/com/qs/serve/modules/oms/mapper/OmsVerSaleOrderMapper.java
index 2ecbc02e..a4d613e8 100644
--- a/src/main/java/com/qs/serve/modules/oms/mapper/OmsVerSaleOrderMapper.java
+++ b/src/main/java/com/qs/serve/modules/oms/mapper/OmsVerSaleOrderMapper.java
@@ -2,6 +2,7 @@ package com.qs.serve.modules.oms.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.qs.serve.modules.oms.entity.OmsVerSaleOrder;
+import org.apache.ibatis.annotations.Select;
 
 /**
  * 订单 Mapper
@@ -10,5 +11,8 @@ import com.qs.serve.modules.oms.entity.OmsVerSaleOrder;
  */
 public interface OmsVerSaleOrderMapper extends BaseMapper<OmsVerSaleOrder> {
 
+    @Select("select * from oms_ver_sale_order where order_sn = #{orderSn} order by id desc limit 1")
+    OmsVerSaleOrder getLastVersionByOrderSn(String orderSn);
+
 }
 
diff --git a/src/main/java/com/qs/serve/modules/oms/service/OmsVerSaleOrderService.java b/src/main/java/com/qs/serve/modules/oms/service/OmsVerSaleOrderService.java
index eb7c36cc..e369bc0a 100644
--- a/src/main/java/com/qs/serve/modules/oms/service/OmsVerSaleOrderService.java
+++ b/src/main/java/com/qs/serve/modules/oms/service/OmsVerSaleOrderService.java
@@ -12,5 +12,7 @@ import com.qs.serve.modules.oms.entity.OmsVerSaleOrder;
  */
 public interface OmsVerSaleOrderService extends IService<OmsVerSaleOrder> {
 
+    OmsVerSaleOrder getLastVersionByOrderSn(String orderSn);
+
 }
 
diff --git a/src/main/java/com/qs/serve/modules/oms/service/impl/OmsVerSaleOrderServiceImpl.java b/src/main/java/com/qs/serve/modules/oms/service/impl/OmsVerSaleOrderServiceImpl.java
index 63b92bc3..9d5a3852 100644
--- a/src/main/java/com/qs/serve/modules/oms/service/impl/OmsVerSaleOrderServiceImpl.java
+++ b/src/main/java/com/qs/serve/modules/oms/service/impl/OmsVerSaleOrderServiceImpl.java
@@ -10,4 +10,11 @@ import com.qs.serve.modules.oms.service.OmsVerSaleOrderService;
  * @since 2025/2/18
  */
 public class OmsVerSaleOrderServiceImpl extends ServiceImpl<OmsVerSaleOrderMapper, OmsVerSaleOrder> implements OmsVerSaleOrderService {
+
+    @Override
+    public OmsVerSaleOrder getLastVersionByOrderSn(String orderSn) {
+        OmsVerSaleOrder omsVerSaleOrder = baseMapper.getLastVersionByOrderSn(orderSn);
+        return omsVerSaleOrder;
+    }
+
 }