diff --git a/src/main/java/com/xujie/sys/modules/ecss/service/impl/CoDelServiceImpl.java b/src/main/java/com/xujie/sys/modules/ecss/service/impl/CoDelServiceImpl.java
index 45145bcc..72d36080 100644
--- a/src/main/java/com/xujie/sys/modules/ecss/service/impl/CoDelServiceImpl.java
+++ b/src/main/java/com/xujie/sys/modules/ecss/service/impl/CoDelServiceImpl.java
@@ -793,6 +793,9 @@ public class CoDelServiceImpl implements CoDelService {
         if (mailAddressAll.length>0) {
             sendMailUtil(textHead, emailContent.toString(), mailAddressAll, headerData);
         }
+
+        // 改单导入后的状态处理逻辑
+        handleNotifyStatusAfterModify(headerData);
     }
 
     /**
@@ -2844,7 +2847,7 @@ public class CoDelServiceImpl implements CoDelService {
             }
 
         }
-        notifyHeader.setModifyFlag(false);
+        //notifyHeader.setModifyFlag(false);
         coDelMapper.updateEcssDelHeaderForModify(notifyHeader);
         coDelMapper.updateEcssDelDetailForModify(notifyHeader);
     }
@@ -3281,4 +3284,56 @@ public class CoDelServiceImpl implements CoDelService {
         }
     }
 
+    /**
+     * 改单导入后处理通知单状态
+     * 1. 如果当前状态是已报关，则删除对应的报关单
+     * 2. 将通知单状态更新为已下达
+     *
+     * @param headerData 发货通知单头数据
+     * @author AI Assistant
+     * @date 2024-10-09
+     */
+    private void handleNotifyStatusAfterModify(EcssCoDelNotifyHeaderData headerData) {
+        try {
+            log.info("开始处理改单导入后的状态更新，发货通知单号：{}, 当前状态：{}",
+                    headerData.getDelNo(), headerData.getNotifyStatus());
+
+            // 检查当前通知单状态
+            String currentStatus = headerData.getNotifyStatus();
+
+            // 如果当前状态是已报关，需要删除对应的报关单
+            if ("已报关".equals(currentStatus)) {
+                log.info("发货通知单{}状态为已报关，开始删除对应的报关单", headerData.getDelNo());
+
+                // 查找对应的报关单
+                EcssDeclarationHeaderData declarationQuery = new EcssDeclarationHeaderData();
+                declarationQuery.setSite(headerData.getSite());
+                declarationQuery.setDelNo(headerData.getDelNo());
+
+                List<EcssDeclarationHeaderData> declarations = coDelMapper.searchDeclarationHeader(
+                    new Page<EcssDeclarationHeaderData>(1, 1000), declarationQuery).getRecords();
+
+                // 删除找到的报关单
+                for (EcssDeclarationHeaderData declaration : declarations) {
+                    log.info("删除报关单，报关单号：{}", declaration.getDeclarationNo());
+                    coDelMapper.deleteDeclarationHeader(declaration);
+                    coDelMapper.deleteDeclarationDetail(declaration);
+                }
+
+                log.info("已删除发货通知单{}对应的{}个报关单", headerData.getDelNo(), declarations.size());
+            }
+
+            // 将通知单状态更新为已下达
+            headerData.setNotifyStatus("已下达");
+            coDelMapper.changeEcssDelStatus(headerData);
+
+            log.info("发货通知单{}状态已更新为已下达", headerData.getDelNo());
+
+        } catch (Exception e) {
+            log.error("处理改单导入后状态更新失败，发货通知单号：{}, 错误信息：{}",
+                    headerData.getDelNo(), e.getMessage(), e);
+            throw new RuntimeException("改单导入后状态处理失败：" + e.getMessage());
+        }
+    }
+
 }