diff --git a/tests/pytest/insert/before_1970.py b/tests/pytest/insert/before_1970.py
new file mode 100644
index 0000000000000000000000000000000000000000..cb17b657aad1a3bfdb915c9661bad291b75d6f04
--- /dev/null
+++ b/tests/pytest/insert/before_1970.py
@@ -0,0 +1,80 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+from util.dnodes import tdDnodes
+
+
+class TDTestCase:
+    """
+    add test data before 1970s
+    """
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+
+        print("==============step1")
+        tdSql.execute("create database if not exists demo keep 36500;");
+        print("==============create db demo keep 365000 days")
+        tdSql.execute("use demo;")
+        tdSql.execute("CREATE table if not exists test (ts timestamp, f1 int);")
+        print("==============create table test")
+
+        print("==============step2")
+        #TODO : should add more testcases
+        tdSql.execute("insert into test values('1930-12-12 01:19:20.345', 1);")
+        tdSql.execute("insert into test values('1969-12-30 23:59:59.999', 2);")
+        tdSql.execute("insert into test values(-3600, 3);")
+        tdSql.execute("insert into test values('2020-10-20 14:02:53.770', 4);")
+        print("==============insert data")
+
+        # tdSql.query("select * from test;")
+        #
+        # tdSql.checkRows(3)
+        #
+        # tdSql.checkData(0,0,'1969-12-12 01:19:20.345000')
+        # tdSql.checkData(1,0,'1970-01-01 07:00:00.000000')
+        # tdSql.checkData(2,0,'2020-10-20 14:02:53.770000')
+        print("==============step3")
+        tdDnodes.stopAll()
+        tdDnodes.start(1)
+        print("==============restart taosd")
+
+
+        print("==============step4")
+        tdSql.execute("use demo;")
+        tdSql.query("select * from test;")
+        # print(tdSql.queryResult)
+        tdSql.checkRows(4)
+        tdSql.checkData(0,0,'1930-12-12 01:19:20.345000')
+        tdSql.checkData(1,0,'1969-12-30 23:59:59.999000')
+        tdSql.checkData(2,0,'1970-01-01 07:00:00.000000')
+        tdSql.checkData(3,0,'2020-10-20 14:02:53.770000')
+        print("==============check data")
+
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())