diff --git a/src/main/java/com/ai/da/service/impl/DesignServiceImpl.java b/src/main/java/com/ai/da/service/impl/DesignServiceImpl.java
index f37fddd2..348646cb 100644
--- a/src/main/java/com/ai/da/service/impl/DesignServiceImpl.java
+++ b/src/main/java/com/ai/da/service/impl/DesignServiceImpl.java
@@ -1369,6 +1369,8 @@ public class DesignServiceImpl extends ServiceImpl<DesignMapper, Design> impleme
         qw.lambda().eq(CollectionSort::getProjectId, projectId);
         if (null != parentId) {
             qw.lambda().eq(CollectionSort::getParentId, parentId);
+        }else {
+            qw.lambda().isNull(CollectionSort::getParentId);
         }
         qw.lambda().orderByDesc(CollectionSort::getSort);
         List<CollectionSort> userLikeSorts = collectionSortMapper.selectList(qw);