diff --git a/emis-biz/src/main/java/com/xdadan/erp/emis/service/impl/EmisWaybillServiceImpl.java b/emis-biz/src/main/java/com/xdadan/erp/emis/service/impl/EmisWaybillServiceImpl.java
index 581480e20..090c28c4b 100644
--- a/emis-biz/src/main/java/com/xdadan/erp/emis/service/impl/EmisWaybillServiceImpl.java
+++ b/emis-biz/src/main/java/com/xdadan/erp/emis/service/impl/EmisWaybillServiceImpl.java
@@ -547,9 +547,12 @@ public class EmisWaybillServiceImpl extends EmisBaseService implements IEmisWayb
         }
 
         emisWaybillSave.setDestinationCode(destination.getDestCode());
-        emisWaybillSave.setDispatchUnderlingSiteCode(destination.getSiteCode());
 
-        // 正式开单
+        if(StringUtils.isEmpty(emisWaybillSave.getDispatchUnderlingSiteCode())) {
+            emisWaybillSave.setDispatchUnderlingSiteCode(destination.getSiteCode());
+        }
+
+        // api 正式开单
         emisWaybillSave.setOrderType("1");
 
         // 如果填写了运费则使用按重量计费模式