diff --git a/tests/python_client/testcases/test_collection.py b/tests/python_client/testcases/test_collection.py
index 9a355a15fc..5e06a313a8 100644
--- a/tests/python_client/testcases/test_collection.py
+++ b/tests/python_client/testcases/test_collection.py
@@ -986,6 +986,7 @@ class TestCollectionParams(TestcaseBase):
                                              check_items={exp_name: c_name, exp_schema: schema})
 
     @pytest.mark.tags(CaseLabel.L2)
+    @pytest.mark.xfail(reason="issue #21238")
     def test_create_collection_over_maximum_fields(self):
         """
         target: Test create collection with more than the maximum fields
@@ -1003,7 +1004,7 @@ class TestCollectionParams(TestcaseBase):
         int_fields.append(cf.gen_float_vec_field())
         int_fields.append(cf.gen_int64_field(is_primary=True))
         schema = cf.gen_collection_schema(fields=int_fields)
-        error = {ct.err_code: 1, ct.err_msg: "maximum field's number should be limited to 256"}
+        error = {ct.err_code: 1, ct.err_msg: "maximum field's number should be limited to 64"}
         self.collection_wrap.init_collection(c_name, schema=schema, check_task=CheckTasks.err_res, check_items=error)
 
 
@@ -1689,6 +1690,7 @@ class TestCreateCollectionInvalid(TestcaseBase):
     """
 
     @pytest.mark.tags(CaseLabel.L2)
+    @pytest.mark.xfail(reason="issue #21238")
     def test_create_collection_limit_fields(self):
         """
         target: test create collection with maximum fields
@@ -1708,7 +1710,7 @@ class TestCreateCollectionInvalid(TestcaseBase):
             field_name_tmp = gen_unique_str("field_name")
             field_schema_temp = cf.gen_int64_field(field_name_tmp)
             field_schema_list.append(field_schema_temp)
-        error = {ct.err_code: 1, ct.err_msg: "'maximum field\'s number should be limited to 256'"}
+        error = {ct.err_code: 1, ct.err_msg: "'maximum field\'s number should be limited to 64'"}
         schema, _ = self.collection_schema_wrap.init_collection_schema(fields=field_schema_list)
         self.init_collection_wrap(name=c_name, schema=schema, check_task=CheckTasks.err_res, check_items=error)