diff --git a/nursing-unit-invoicing/nu-invoicing-biz/src/main/java/com/nu/modules/pdd/service/impl/NuInvoicingPddMainServiceImpl.java b/nursing-unit-invoicing/nu-invoicing-biz/src/main/java/com/nu/modules/pdd/service/impl/NuInvoicingPddMainServiceImpl.java
index 07c427cc..b14937fb 100644
--- a/nursing-unit-invoicing/nu-invoicing-biz/src/main/java/com/nu/modules/pdd/service/impl/NuInvoicingPddMainServiceImpl.java
+++ b/nursing-unit-invoicing/nu-invoicing-biz/src/main/java/com/nu/modules/pdd/service/impl/NuInvoicingPddMainServiceImpl.java
@@ -121,7 +121,7 @@ public class NuInvoicingPddMainServiceImpl extends ServiceImpl<NuInvoicingPddMai
         }
         NuInvoicingPddMain newNuInvoicingPddMain = new NuInvoicingPddMain();
         BeanUtils.copyProperties(invoicingPddMainEntity,newNuInvoicingPddMain);
-        String pddNo = "Q"+user.getOrgCode()+qgdDate+String.format("%03d", ++qgdXlhInt);
+        String pddNo = "P"+user.getOrgCode()+qgdDate+String.format("%03d", ++qgdXlhInt);
         newNuInvoicingPddMain.setPddNo(pddNo);
         newNuInvoicingPddMain.setPddStartBy(user.getRealname());
         newNuInvoicingPddMain.setPddStartTime(new Date());