diff --git a/tests/python_client/scale/test_data_node_scale.py b/tests/python_client/scale/test_data_node_scale.py
index bdb23c6108..8ec7090fbe 100644
--- a/tests/python_client/scale/test_data_node_scale.py
+++ b/tests/python_client/scale/test_data_node_scale.py
@@ -23,9 +23,16 @@ class TestDataNodeScale:
     @pytest.mark.tags(CaseLabel.L3)
     def test_scale_data_node(self):
         """
-        target:
-        method:
-        expected:
+        target: test scale dataNode
+        method: 1.deploy milvus cluster with 2 dataNode
+                2.create collection with shards_num=5
+                3.continuously insert new data (daemon thread)
+                4.expand dataNode from 2 to 5
+                5.create new collection with shards_num=2
+                6.continuously insert new collection new data (daemon thread)
+                7.shrink dataNode from 5 to 3
+        expected: Verify milvus remains healthy, Insert and flush successfully during scale
+                  Average dataNode memory usage
         """
         release_name = "scale-data"
         image = f'{constants.IMAGE_REPOSITORY}:{constants.IMAGE_TAG}'
diff --git a/tests/python_client/scale/test_query_node_scale.py b/tests/python_client/scale/test_query_node_scale.py
index 5db550768d..22981b8955 100644
--- a/tests/python_client/scale/test_query_node_scale.py
+++ b/tests/python_client/scale/test_query_node_scale.py
@@ -25,6 +25,16 @@ class TestQueryNodeScale:
 
     @pytest.mark.tags(CaseLabel.L3)
     def test_scale_query_node(self):
+        """
+        target: test scale queryNode
+        method: 1.deploy milvus cluster with 1 queryNode
+                2.prepare work (connect, create, insert, index and load)
+                3.continuously search (daemon thread)
+                4.expand queryNode from 2 to 5
+                5.continuously insert new data (daemon thread)
+                6.shrink queryNode from 5 to 3
+        expected: Verify milvus remains healthy and search successfully during scale
+        """
         release_name = "scale-query"
         query_config = {
             'metadata.namespace': constants.NAMESPACE,