diff --git a/tests/python_client/testcases/test_collection.py b/tests/python_client/testcases/test_collection.py
index 6159533227cc4d7b8da07c18f3fea1db4d4576cc..1463b18152654af8c8f3153610b0232d49d561c5 100644
--- a/tests/python_client/testcases/test_collection.py
+++ b/tests/python_client/testcases/test_collection.py
@@ -2398,6 +2398,11 @@ class TestDropCollectionInvalid(object):
 
     @pytest.mark.tags(CaseLabel.L2)
     def test_drop_collection_with_invalid_collection_name(self, connect, get_collection_name):
+        """
+        target: test drop invalid collection
+        method: drop collection with invalid collection name
+        expected: raise exception
+        """
         collection_name = get_collection_name
         with pytest.raises(Exception) as e:
             connect.has_collection(collection_name)