diff --git a/scripts/config_validator.py b/scripts/config_validator.py
deleted file mode 100755
index ee5789e95a..0000000000
--- a/scripts/config_validator.py
+++ /dev/null
@@ -1,44 +0,0 @@
-#!/usr/bin/env python3
-import json
-import argparse
-import sonic_yang
-
-from sonic_py_common import logger
-
-YANG_MODELS_DIR = "/usr/local/yang-models"
-SYSLOG_IDENTIFIER = 'config_validator'
-
-# Global logger instance
-log = logger.Logger(SYSLOG_IDENTIFIER)
-
-
-def main():
-    parser = argparse.ArgumentParser()
-    parser.add_argument('-c',
-                        dest='config',
-                        metavar='config file',
-                        type=str,
-                        required=True,
-                        help='the config file to be validated',
-                        default=None)
-
-    args = parser.parse_args()
-    config_file = args.config
-    with open(config_file) as fp:
-        config = json.load(fp)
-    # Run yang validation
-    yang_parser = sonic_yang.SonicYang(YANG_MODELS_DIR)
-    yang_parser.loadYangModel()
-    try:
-        yang_parser.loadData(configdbJson=config)
-        yang_parser.validate_data_tree()
-    except sonic_yang.SonicYangException as e:
-        log.log_error("Yang validation failed: " + str(e))
-        raise
-    if len(yang_parser.tablesWithOutYang):
-        log.log_error("Tables without yang models: " + str(yang_parser.tablesWithOutYang))
-        raise Exception("Tables without yang models: " + str(yang_parser.tablesWithOutYang))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/scripts/db_migrator.py b/scripts/db_migrator.py
index c7d4bd2c21..f50eb9cab0 100755
--- a/scripts/db_migrator.py
+++ b/scripts/db_migrator.py
@@ -6,7 +6,6 @@
 import sys
 import traceback
 import re
-import subprocess
 
 from sonic_py_common import device_info, logger
 from swsscommon.swsscommon import SonicV2Connector, ConfigDBConnector, SonicDBConfig
@@ -1368,34 +1367,6 @@ def migrate(self):
             version = next_version
         # Perform common migration ops
         self.common_migration_ops()
-        # Perform yang validation
-        self.validate()
-
-    def validate(self):
-        config = self.configDB.get_config()
-        # Fix table key in tuple
-        for table_name, table in config.items():
-            new_table = {}
-            hit = False
-            for table_key, table_val in table.items():
-                if isinstance(table_key, tuple):
-                    new_key = "|".join(table_key)
-                    new_table[new_key] = table_val
-                    hit = True
-                else:
-                    new_table[table_key] = table_val
-            if hit:
-                config[table_name] = new_table
-        config_file = "/tmp/validate.json"
-        with open(config_file, 'w') as fp:
-            json.dump(config, fp)
-        process = subprocess.Popen(["config_validator.py", "-c", config_file])
-        # Check validation result for unit test
-        # Check validation result for end to end test
-        mark_file = "/etc/sonic/mgmt_test_mark"
-        if os.environ.get("UTILITIES_UNIT_TESTING", "0") == "2" or os.path.exists(mark_file):
-            ret = process.wait()
-            assert ret == 0, "Yang validation failed"
 
 def main():
     try:
diff --git a/setup.py b/setup.py
index 597dfadbfb..8b465bda95 100644
--- a/setup.py
+++ b/setup.py
@@ -116,7 +116,6 @@
         'scripts/buffershow',
         'scripts/coredump-compress',
         'scripts/configlet',
-        'scripts/config_validator.py',
         'scripts/db_migrator.py',
         'scripts/decode-syseeprom',
         'scripts/dropcheck',