diff --git a/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockOutOrder/service/ReservationStockOutOrderDomainService.java b/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockOutOrder/service/ReservationStockOutOrderDomainService.java
index bdda8e91b..71934fa6d 100644
--- a/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockOutOrder/service/ReservationStockOutOrderDomainService.java
+++ b/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockOutOrder/service/ReservationStockOutOrderDomainService.java
@@ -1,5 +1,6 @@
 package com.mhd.oms.domain.reservationStockOutOrder.service;
 
+import cn.hutool.core.collection.CollUtil;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson2.JSONObject;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
@@ -108,6 +109,10 @@ public class ReservationStockOutOrderDomainService {
         if (stockOutOrderDO.getCheckTaskDistribution() == null) {
             stockOutOrderDO.setCheckTaskDistribution(2);
         }
+        List<ReservationDeliveryDetailsLink> reservationDeliveryDetailsLinkList = stockOutOrderDO.getReservationDeliveryDetailsLinkList();
+        if (!CollectionUtils.isEmpty(reservationDeliveryDetailsLinkList)) {
+            reservationDeliveryDetailsLinkService.saveBatch(reservationDeliveryDetailsLinkList);
+        }
         stockOutOrderService.insert(stockOutOrderDO);
         return outMaterialDetailService.batchInsert(stockOutOrderDO.getOutOrderNumber(), stockOutOrderDO.getMaterialDetailList());
     }
@@ -185,6 +190,23 @@ public class ReservationStockOutOrderDomainService {
 //        }
 
         List<ReservationDeliveryDetailsLink> reservationDeliveryDetailsLinkList = stockOutOrderDO.getReservationDeliveryDetailsLinkList();
+        List<ReservationDeliveryDetailsLink> oldList = reservationDeliveryDetailsLinkService.list(new LambdaQueryWrapper<ReservationDeliveryDetailsLink>().eq(ReservationDeliveryDetailsLink::getOrderId, stockOutOrderDO.getOutOrderId()));
+        // ====================== 核心：取差值 ======================
+        // 第一步：把新列表的所有id存入Set（O(1)查找，效率最高）
+        Set<Long> newIdSet = reservationDeliveryDetailsLinkList.stream()
+                .map(ReservationDeliveryDetailsLink::getId)
+                .filter(Objects::nonNull) // 过滤null id，避免空指针
+                .collect(Collectors.toSet());
+
+        // 第二步：筛选出旧列表中 不在新列表里的元素（就是要删除的差值）
+        List<ReservationDeliveryDetailsLink> deleteList = oldList.stream()
+                .filter(oldItem -> !newIdSet.contains(oldItem.getId()))
+                .collect(Collectors.toList());
+
+        // 第三步：执行删除（如果需要）
+        if (CollUtil.isNotEmpty(deleteList)) {
+            reservationDeliveryDetailsLinkService.removeByIds(deleteList);
+        }
         if (!CollectionUtils.isEmpty(reservationDeliveryDetailsLinkList)) {
             reservationDeliveryDetailsLinkService.updateBatchById(reservationDeliveryDetailsLinkList);
         }