diff --git a/tests/pytest/tag_lite/too_many_tag_condtions.py b/tests/pytest/tag_lite/too_many_tag_condtions.py
new file mode 100644
index 0000000000000000000000000000000000000000..a40de405fffeff50ab5794a7838b869345430bf4
--- /dev/null
+++ b/tests/pytest/tag_lite/too_many_tag_condtions.py
@@ -0,0 +1,70 @@
+# -*- coding: utf-8 -*-
+
+import sys
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+        
+        tdLog.info('======================== dnode1 start')
+        tbPrefix = "ta_cr_tb"
+        mtPrefix = "ta_cr_mt"
+        tbNum = 2 
+        rowNum = 10 
+        totalNum = 200
+        tagCondsLimit = 1024
+        tdLog.info('=============== step1: create tbl and prepare data')
+        i = 0
+        i = 2
+        mt = "%s%d" % (mtPrefix, i)
+        tb = "%s%d" % (tbPrefix, i)
+         
+        sql ='create table %s (ts timestamp, tbcol int) TAGS(tgcol int)'% (mt)
+        tdLog.info(sql)
+        tdSql.execute(sql)
+        for i in range(0, tbNum): 
+          tblName = "%s%d"%(tbPrefix, i)
+          sql = 'create table %s using %s TAGS(%d)'%(tblName, mt, i) 
+          tdSql.execute(sql)
+          for j in range(0, rowNum):
+            sql = "insert into %s values(now, %d)"%(tblName, j) 
+            tdSql.execute(sql)
+
+        sqlPrefix = "select * from %s where "%(mt)    
+        for i in range(2, 2048, 1):
+          conds = "tgcol=1 and "* (i - 1)
+          conds = "%stgcol=1"%(conds)
+          sql = "%s%s"%(sqlPrefix, conds)
+          if i >= tagCondsLimit: 
+            tdSql.error(sql)
+          else:   
+            tdSql.query(sql)
+            #tdSql.checkRows(1)
+
+        for i in range(2, 2048, 1):
+          conds = "" 
+          for j in range(0, i - 1): 
+            conds = conds + "tgcol=%d or "%(j%tbNum)
+          conds += "tgcol=%d"%(i%tbNum)
+          sql = sqlPrefix + conds 
+          if i >= tagCondsLimit:
+            tdSql.error(sql)
+          else:  
+            tdSql.query(sql)
+        
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())