diff --git a/tests/pytest/tools/taosdumpTest.py b/tests/pytest/tools/taosdumpTest.py
index 534a477b340210b8ee6bcd77fe6010c6d3d261e0..8746f4ecdff32e740467d7caf0c5808dd91a72d5 100644
--- a/tests/pytest/tools/taosdumpTest.py
+++ b/tests/pytest/tools/taosdumpTest.py
@@ -45,7 +45,9 @@ class TDTestCase:
         for i in range(100):
             sql += "(%d, %d, 'nchar%d')" % (currts + i, i % 100, i % 100)
         tdSql.execute(sql)
+        
 
+        os.system("rm /tmp/*.sql")
         os.system("taosdump --databases db -o /tmp")
         
         tdSql.execute("drop database db")
diff --git a/tests/pytest/tools/taosdumpTest2.py b/tests/pytest/tools/taosdumpTest2.py
new file mode 100644
index 0000000000000000000000000000000000000000..51a73555a805ea503bdf560cbc3773e85b6d35ce
--- /dev/null
+++ b/tests/pytest/tools/taosdumpTest2.py
@@ -0,0 +1,74 @@
+###################################################################
+#           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 os
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+        
+        self.ts = 1601481600000
+        self.numberOfTables = 1
+        self.numberOfRecords = 15000
+    
+    def run(self):
+        tdSql.prepare()
+
+        tdSql.execute("create table st(ts timestamp, c1 timestamp, c2 int, c3 bigint, c4 float, c5 double, c6 binary(8), c7 smallint, c8 tinyint, c9 bool, c10 nchar(8)) tags(t1 int)")
+        tdSql.execute("create table t1 using st tags(0)")
+        currts = self.ts
+        finish = 0
+        while(finish < self.numberOfRecords):
+            sql = "insert into t1 values"
+            for i in range(finish, self.numberOfRecords):
+                sql += "(%d, 1019774612, 29931, 1442173978, 165092.468750, 1128.643179, 'MOCq1pTu', 18405, 82, 0, 'g0A6S0Fu')" % (currts + i)
+                finish = i + 1
+                if (1048576 - len(sql)) < 16384:
+                 break
+            tdSql.execute(sql)
+
+        os.system("rm /tmp/*.sql")
+        os.system("taosdump --databases db -o /tmp -B 32766 -L 1048576")
+        
+        tdSql.execute("drop database db")
+        tdSql.query("show databases")
+        tdSql.checkRows(0)
+        
+        os.system("taosdump -i /tmp")
+
+        tdSql.query("show databases")
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, 'db')
+        
+        tdSql.execute("use db")
+        tdSql.query("show stables")
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, 'st')
+
+        tdSql.query("select count(*) from t1")
+        tdSql.checkData(0, 0, self.numberOfRecords)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file