diff --git a/src/main/java/com/glxp/api/service/purchase/impl/PurOrderServiceImpl.java b/src/main/java/com/glxp/api/service/purchase/impl/PurOrderServiceImpl.java
index 9030aadc1..4d29462f5 100644
--- a/src/main/java/com/glxp/api/service/purchase/impl/PurOrderServiceImpl.java
+++ b/src/main/java/com/glxp/api/service/purchase/impl/PurOrderServiceImpl.java
@@ -56,7 +56,7 @@ public class PurOrderServiceImpl implements PurOrderService {
 
     @Override
     public List<PurOrderEntity> findByStatus(String billType, Integer status, Date lastUpdateTime) {
-        return purOrderDao.selectList(new QueryWrapper<PurOrderEntity>().eq("billType", billType).eq("status", status).gt("updateTime", lastUpdateTime));
+        return purOrderDao.selectList(new QueryWrapper<PurOrderEntity>().eq("billType", billType).eq("status", status).le(lastUpdateTime != null, "updateTime", lastUpdateTime));
     }
 
     @Override