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 ebb46af75..57e2130e9 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
@@ -522,7 +522,7 @@ public class EmisWaybillServiceImpl extends EmisBaseService implements IEmisWayb
         if("1".equals(emisWaybillSave.getBlGenSubbill()) ){
             // 子单号拼接
             StringBuilder sb = new StringBuilder();
-            for(int i=0;i<emisWaybillSave.getParcelQty().intValue() && i<50;i++){
+            for(int i=0;i<emisWaybillSave.getParcelQty().intValue() && i<20;i++){
                 sb.append(emisWaybillSave.getBillCode()+ StringUtils.leftPad(String.valueOf(i),4,"0")+",");
             }
             emisWaybillSave.setBillCodeSub(sb.toString());