diff --git a/src/rootserver/ddl_task/ob_ddl_task.cpp b/src/rootserver/ddl_task/ob_ddl_task.cpp
index a36b39885c..b7961c9191 100644
--- a/src/rootserver/ddl_task/ob_ddl_task.cpp
+++ b/src/rootserver/ddl_task/ob_ddl_task.cpp
@@ -1440,7 +1440,10 @@ int ObDDLTaskRecordOperator::check_has_conflict_ddl(
           } else if (task_record.task_id_ != task_id) {
             switch (ddl_type) {
             case ObDDLType::DDL_DROP_TABLE: {
-              has_conflict_ddl = true;
+              if (task_record.ddl_type_ == ObDDLType::DDL_DROP_INDEX && task_record.target_object_id_ != task_record.object_id_) {
+                LOG_WARN("conflict with ddl", K(task_record));
+                has_conflict_ddl = true;
+              } 
               break;
             }
             default: {
diff --git a/src/rootserver/ob_ddl_service.cpp b/src/rootserver/ob_ddl_service.cpp
index 81a8575231..8c48f271ec 100644
--- a/src/rootserver/ob_ddl_service.cpp
+++ b/src/rootserver/ob_ddl_service.cpp
@@ -18229,7 +18229,7 @@ int ObDDLService::drop_table(const ObDropTableArg &drop_table_arg, const obrpc::
               if (table_schema->get_table_type() == MATERIALIZED_VIEW || table_schema->is_tmp_table()) {
                 to_recyclebin = false;
               }
-              if (OB_FAIL(ObDDLTaskRecordOperator::check_has_conflict_ddl(
+              if (drop_table_arg.table_type_ == USER_TABLE && OB_FAIL(ObDDLTaskRecordOperator::check_has_conflict_ddl(
                       sql_proxy_,
                       drop_table_arg.tenant_id_,
                       table_schema->get_table_id(),