diff --git a/src/common/authlete_util.py b/src/common/authlete_util.py
index 4a0fe615..8c963920 100644
--- a/src/common/authlete_util.py
+++ b/src/common/authlete_util.py
@@ -3,6 +3,7 @@
 import requests
 import settings
 from record_not_found_error import RecordNotFoundError
+from jsonschema import ValidationError
 
 
 class AuthleteUtil:
@@ -24,9 +25,11 @@ def is_accessible_client(client_id, user_id):
 
         return developer == user_id
 
-    # 404以外はALIS上では異常な状態であるため、システムエラーとして扱い、検知対象にする
+    # 400, 404以外はALIS上では異常な状態であるため、システムエラーとして扱い、検知対象にする
     @staticmethod
     def verify_valid_response(response, request_client_id=None):
+        if response.status_code == 400:
+            raise ValidationError('Please check the input parameters')
         if request_client_id and response.status_code == 404:
             raise RecordNotFoundError('{0} is not found.'.format(request_client_id))
 
diff --git a/tests/common/test_authlete_util.py b/tests/common/test_authlete_util.py
index bd69528e..f1ad6377 100644
--- a/tests/common/test_authlete_util.py
+++ b/tests/common/test_authlete_util.py
@@ -8,6 +8,7 @@
 import settings
 from authlete_util import AuthleteUtil
 from record_not_found_error import RecordNotFoundError
+from jsonschema import ValidationError
 
 
 class TestAuthleteUtil(TestCase):
@@ -90,6 +91,11 @@ def test_verify_valid_response(self):
                 'request_client_id': '12345',
                 'exception': False
             },
+            {
+                'status_code': 400,
+                'request_client_id': '12345',
+                'exception': ValidationError
+            },
             {
                 'status_code': 404,
                 'request_client_id': None,
@@ -121,6 +127,10 @@ def test_verify_valid_response(self):
                     with self.assertRaises(Exception):
                         AuthleteUtil.verify_valid_response(response, case['request_client_id'])
 
+                if case['exception'] is ValidationError:
+                    with self.assertRaises(ValidationError):
+                        AuthleteUtil.verify_valid_response(response, case['request_client_id'])
+
                 if case['exception'] is RecordNotFoundError:
                     with self.assertRaises(RecordNotFoundError):
                         AuthleteUtil.verify_valid_response(response, case['request_client_id'])
diff --git a/tests/handlers/me/applications/create/test_me_applications_create.py b/tests/handlers/me/applications/create/test_me_applications_create.py
index c95d11bf..b97292b5 100644
--- a/tests/handlers/me/applications/create/test_me_applications_create.py
+++ b/tests/handlers/me/applications/create/test_me_applications_create.py
@@ -89,6 +89,40 @@ def test_main_ok_type_native(self):
         self.assertEqual('PUBLIC', json.loads(responses.calls[0].request.body).get('clientType'))
         self.assertEqual('NONE', json.loads(responses.calls[0].request.body).get('tokenAuthMethod'))
 
+    @responses.activate
+    def test_main_ng_authlete_api_response_400(self):
+        params = {
+            'body': {
+                'name': 'あ' * 80,
+                'description': 'A' * 180,
+                'application_type': 'NATIVE',
+                'redirect_urls': ['http://example.com/1']
+            },
+            'requestContext': {
+                'authorizer': {
+                    'claims': {
+                        'cognito:username': 'user01',
+                        'phone_number_verified': 'true',
+                        'email_verified': 'true'
+                    }
+                }
+            }
+        }
+
+        params['body'] = json.dumps(params['body'])
+
+        # 400 が返却されるように mock 化
+        responses.add(responses.POST, settings.AUTHLETE_CLIENT_ENDPOINT + '/create',
+                      json={"resultCode": "A031208", "resultMessage": "error_message"}, status=400)
+
+        response = MeApplicationsCreate(params, {}).main()
+
+        logging.fatal(response)
+
+        self.assertEqual(response['statusCode'], 400)
+        self.assertEqual(json.loads(response['body']),
+                         {"message": "Invalid parameter: Please check the input parameters"})
+
     @patch('requests.post', MagicMock(side_effect=requests.exceptions.RequestException()))
     def test_main_with_exception(self):
         params = {
diff --git a/tests/handlers/me/applications/update/test_me_applications_update.py b/tests/handlers/me/applications/update/test_me_applications_update.py
index 0a18471c..7836f21c 100644
--- a/tests/handlers/me/applications/update/test_me_applications_update.py
+++ b/tests/handlers/me/applications/update/test_me_applications_update.py
@@ -58,6 +58,47 @@ def test_main_ok(self):
         self.assertEqual(response['statusCode'], 200)
         self.assertEqual(json.loads(response['body']), {"developer": "user01"})
 
+    @responses.activate
+    def test_main_ng_authlete_api_response_400(self):
+        params = {
+            'pathParameters': {
+                'client_id': '123456789'
+            },
+            'body': {
+                'name': 'あ' * 80,
+                'description': 'A' * 180,
+                'redirect_urls': ['http://example.com/1']
+            },
+            'requestContext': {
+                'authorizer': {
+                    'claims': {
+                        'cognito:username': 'user01',
+                        'phone_number_verified': 'true',
+                        'email_verified': 'true'
+                    }
+                }
+            }
+        }
+
+        params['body'] = json.dumps(params['body'])
+
+        # 400 が返却されるように mock 化
+        responses.add(responses.POST,
+                      settings.AUTHLETE_CLIENT_ENDPOINT + '/update/' + params['pathParameters']['client_id'],
+                      json={"resultCode": "A031233", "resultMessage": "error_message"}, status=400)
+        # AuthleteUtilで呼ばれるAPI callをmockする
+        responses.add(responses.GET, settings.AUTHLETE_CLIENT_ENDPOINT + '/get/' + params['pathParameters']['client_id'],
+                      json={'developer': "user01"}, status=200)
+        # アプリケーション情報取得で呼ばれるAPI callをmockする
+        responses.add(responses.GET, settings.AUTHLETE_CLIENT_ENDPOINT + '/get/' + params['pathParameters']['client_id'],
+                      json={'developer': "user01"}, status=200)
+
+        response = MeApplicationUpdate(params, {}).main()
+
+        self.assertEqual(response['statusCode'], 400)
+        self.assertEqual(json.loads(response['body']),
+                         {"message": "Invalid parameter: Please check the input parameters"})
+
     @patch('requests.post', MagicMock(side_effect=requests.exceptions.RequestException()))
     def test_main_with_exception(self):
         params = {