diff --git a/appbuilder/core/components/retriever/baidu_vdb/README.md b/appbuilder/core/components/retriever/baidu_vdb/README.md
index f7a1c8b94..013c48a40 100644
--- a/appbuilder/core/components/retriever/baidu_vdb/README.md
+++ b/appbuilder/core/components/retriever/baidu_vdb/README.md
@@ -19,6 +19,10 @@
 
 以下是有关如何开始使用BaiduVDBRetriever的代码示例：
 
+补充说明：
+- `you_vdb_instance_id` 为VectorDB 实例ID，请替换为您的实例ID，在VectorDB控制台界面上可以查看
+- `your_api_key` 为您在VectorDB上申请的账户密钥，请替换为您自己的root账户密钥，在VectorDB控制台界面上可以查看
+
 ```python
 import os
 import appbuilder
diff --git a/appbuilder/core/components/retriever/baidu_vdb/baiduvdb_retriever.py b/appbuilder/core/components/retriever/baidu_vdb/baiduvdb_retriever.py
index 25015607f..39c945db6 100644
--- a/appbuilder/core/components/retriever/baidu_vdb/baiduvdb_retriever.py
+++ b/appbuilder/core/components/retriever/baidu_vdb/baiduvdb_retriever.py
@@ -197,7 +197,10 @@ def _create_table_in_db(
         fields.append(Field(FIELD_TEXT, FieldType.STRING))
         fields.append(
             Field(
-                FIELD_VECTOR, FieldType.FLOAT_VECTOR, dimension=table_params.dimension
+                FIELD_VECTOR, 
+                FieldType.FLOAT_VECTOR, 
+                dimension=table_params.dimension,
+                not_null=True,
             )
         )