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 4c3b44112..010fd89a2 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
@@ -1203,7 +1203,7 @@ public class EmisWaybillServiceImpl extends EmisBaseService implements IEmisWayb
         // 子单号做扣减
         if ("1".equals(emisWaybillSave.getBlGenSubbill())) {
             Integer subBillCount = emisElectronicSitePagService.getTotalAvailablePagCount(emisWaybillSave.getSendSiteCode(), "T7080", "1002");
-            if (subBillCount <= 0) {
+            if ( subBillCount==null || (subBillCount!=null && subBillCount <= 0) ) {
                 throw new EmisBizError(EmisBizErrorType.FAIL, "子单数量不足");
             }
         }