diff --git a/tests/pytest/insert/nchar.py b/tests/pytest/insert/nchar.py
new file mode 100644
index 0000000000000000000000000000000000000000..d61a44844dae7997721f5cae9e4e38d1f217e05a
--- /dev/null
+++ b/tests/pytest/insert/nchar.py
@@ -0,0 +1,44 @@
+###################################################################
+#           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
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+
+    def run(self):
+        tdSql.prepare()
+
+        tdSql.execute('create table tb (ts timestamp, col nchar(10))')
+        tdSql.execute("insert into tb values (now, 'taosdata')")
+        tdSql.query("select * from tb")
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 1, 'taosdata')
+        tdSql.execute("insert into tb values (now, '涛思数据')")
+        tdSql.query("select * from tb")
+        tdSql.checkRows(2)
+        tdSql.checkData(1, 1, '涛思数据')
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())