diff --git a/tests/system-test/8-stream/partition_interval.py b/tests/system-test/8-stream/partition_interval.py
index 0424932bf8..3692408de0 100644
--- a/tests/system-test/8-stream/partition_interval.py
+++ b/tests/system-test/8-stream/partition_interval.py
@@ -35,6 +35,9 @@ class TDTestCase:
 
         # create stb/ctb/tb stream
         self.tdCom.create_stream(stream_name=f'{self.stb_name}{self.tdCom.stream_suffix}', des_table=self.stb_stream_des_table, source_sql=source_sql, ignore_expired=ignore_expired)
+
+        time.sleep(1)
+
         # insert data
         count = 1
         step_count = 1