diff --git a/pkg/cloudcommon/db/taskman/tasks.go b/pkg/cloudcommon/db/taskman/tasks.go
index 825f04b54c..4cd38636eb 100644
--- a/pkg/cloudcommon/db/taskman/tasks.go
+++ b/pkg/cloudcommon/db/taskman/tasks.go
@@ -682,7 +682,8 @@ func (self *STask) GetParams() *jsonutils.JSONDict {
 func (self *STask) IsSubTask() bool {
 	if params := self.GetParams(); params != nil {
 		subTask, _ := params.Bool("subtask")
-		return subTask
+		parendTaskId, _ := params.GetString(PARENT_TASK_ID_KEY)
+		return subTask || len(parendTaskId) > 0
 	}
 	return false
 }