diff --git a/src/main/java/com/xujie/sys/modules/ecss/mapper/CoDelMapper.java b/src/main/java/com/xujie/sys/modules/ecss/mapper/CoDelMapper.java
index 7fc3e284..44171601 100644
--- a/src/main/java/com/xujie/sys/modules/ecss/mapper/CoDelMapper.java
+++ b/src/main/java/com/xujie/sys/modules/ecss/mapper/CoDelMapper.java
@@ -25,6 +25,9 @@ public interface CoDelMapper {
 
 
     List<EcssCoDelNotifyHeaderData> checkEcssCoDelNotifyHeaderByDelNo( @Param("site") String site,@Param("delNo") String delNo);
+
+    List<EcssCoDelNotifyHeaderData> checkEcssDeclarationHeaderByDelNo( @Param("site") String site,@Param("delNo") String delNo);
+
     List<EcssCoDelNotifyDetailData> searchEcssCoDelNotifyDetail(EcssCoDelNotifyHeaderData data);
 
     List<EcssCoDelNotifyDetailData> getEcssCoDelNotifyDetail(EcssCoDelNotifyDetailData data);
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 0c977a41..992c9466 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
@@ -1355,11 +1355,11 @@ public class CoDelServiceImpl implements CoDelService {
                 hasPnDeleted = true;
             }
         }
-        
+
         // 检查是否有PN或Qty的修改
         boolean hasPnOrQtyModified = excelList.stream()
                 .anyMatch(item -> item.getModifyQtyFlag() != null && item.getModifyQtyFlag());
-        
+
         coDelMapper.batchSaveEcssCoDelNotifyDetail(excelList);
         headerData.setModifyFlag(true);
         // 更新头表字段，包括ReadyDate、ShippingMode、Destination
@@ -1551,7 +1551,7 @@ public class CoDelServiceImpl implements CoDelService {
                 boolean qtyChanged = !oldDetail.getQty().equals(newDetail.getQty());
                 boolean currencyChanged = !Objects.equals(oldDetail.getCurrency(), newDetail.getCurrency());
                 boolean tpChanged = !Objects.equals(oldDetail.getTp(), newDetail.getTp());
-                
+
                 // 构建变更说明
                 List<String> changes = new ArrayList<>();
                 if (pnChanged) changes.add("换料");
@@ -1559,14 +1559,14 @@ public class CoDelServiceImpl implements CoDelService {
                 if (currencyChanged) changes.add("Currency变更");
                 if (tpChanged) changes.add("TP变更");
                 String changeDesc = changes.isEmpty() ? "-" : String.join("、", changes);
-                
+
                 // PN列
                 if (pnChanged) {
                     table.append("<td>").append(oldDetail.getPn()).append(" → <span class='changed'>").append(newDetail.getPn()).append("</span></td>");
                 } else {
                     table.append("<td>").append(newDetail.getPn()).append("</td>");
                 }
-                
+
                 // 数量列
                 table.append("<td>").append(oldDetail.getQty().setScale(0, RoundingMode.HALF_UP)).append("</td>");
                 if (qtyChanged) {
@@ -1574,7 +1574,7 @@ public class CoDelServiceImpl implements CoDelService {
                 } else {
                     table.append("<td>").append(newDetail.getQty().setScale(0, RoundingMode.HALF_UP)).append("</td>");
                 }
-                
+
                 // Currency列
                 String oldCurrency = oldDetail.getCurrency() != null ? oldDetail.getCurrency() : "-";
                 String newCurrency = newDetail.getCurrency() != null ? newDetail.getCurrency() : "-";
@@ -1584,7 +1584,7 @@ public class CoDelServiceImpl implements CoDelService {
                 } else {
                     table.append("<td>").append(newCurrency).append("</td>");
                 }
-                
+
                 // TP列
                 String oldTp = oldDetail.getTp() != null ? oldDetail.getTp().setScale(2, RoundingMode.HALF_UP).toString() : "-";
                 String newTp = newDetail.getTp() != null ? newDetail.getTp().setScale(2, RoundingMode.HALF_UP).toString() : "-";
@@ -1594,7 +1594,7 @@ public class CoDelServiceImpl implements CoDelService {
                 } else {
                     table.append("<td>").append(newTp).append("</td>");
                 }
-                
+
                 // 变更说明列
                 if (!changes.isEmpty()) {
                     table.append("<td class='changed'>").append(changeDesc).append("</td>");
@@ -2255,6 +2255,10 @@ public class CoDelServiceImpl implements CoDelService {
         } else {
             notifyHeaderData = getCoDelNotifyHeaderData.get(0);
         }
+        List<EcssCoDelNotifyHeaderData> headerData = coDelMapper.checkEcssDeclarationHeaderByDelNo(inData.getSite(), inData.getDelNo());
+        if (!headerData.isEmpty()) {
+            throw new RuntimeException("报关单已经存在，请刷新界面！");
+        }
         //获取重量
         EcssCoDelPalletHeader getAllWeight = coDelMapper.getAllWeight(inData.getSite(), inData.getDelNo(),inData.getBuNo());
         if (getAllWeight == null) {
@@ -2343,6 +2347,10 @@ public class CoDelServiceImpl implements CoDelService {
     @Override
     @Transactional
     public void saveDeclaration(EcssDeclarationHeaderData inData) {
+        List<EcssCoDelNotifyHeaderData> getCoDelNotifyHeaderData = coDelMapper.checkEcssDeclarationHeaderByDelNo(inData.getSite(), inData.getDelNo());
+        if (!getCoDelNotifyHeaderData.isEmpty()) {
+            throw new RuntimeException("报关单已经存在，请刷新界面！");
+        }
         String transNo;
         coDelMapper.updateTransNo(inData.getSite(), "BG");
         transNo = coDelMapper.getTransNo(inData.getSite(), "BG");
@@ -5237,7 +5245,7 @@ public class CoDelServiceImpl implements CoDelService {
 
     /**
      * 改单导入后处理通知单状态
-     * 
+     *
      * <p><b>处理逻辑：</b></p>
      * <ul>
      *   <li>如果当前状态是已报关，删除对应的报关单</li>
diff --git a/src/main/resources/mapper/ecss/CoDelMapper.xml b/src/main/resources/mapper/ecss/CoDelMapper.xml
index 80aa7083..ddde1eb4 100644
--- a/src/main/resources/mapper/ecss/CoDelMapper.xml
+++ b/src/main/resources/mapper/ecss/CoDelMapper.xml
@@ -124,6 +124,13 @@
                 AND a.delNo = #{delNo}
     </select>
 
+    <select id="checkEcssDeclarationHeaderByDelNo" resultType="EcssCoDelNotifyHeaderData">
+        select a.site,a.delNo
+        from ecss_declaration_header a
+        where a.site = #{site}
+          AND a.delNo = #{delNo}
+    </select>
+
        <select id="searchEcssCoDelNotifyDetail"   resultType="EcssCoDelNotifyDetailData">
         select a.site,a.bu_no,a.delNo,a.item_no,a.salesOrder,a.salesOrder_item_no,a.customerPO,a.line,a.version,a.status,a.family,
         a.part_no,a.part_description,a.qty,a.lt,a.cmc_comment,a.saleType,a.awb_bl,a.shipping_number,a.forwarder_info,isnull(a.surplus_qty,0) surplusQty,