diff --git a/hugegraph-llm/src/hugegraph_llm/config/config.py b/hugegraph-llm/src/hugegraph_llm/config/config.py
index 6a4c5078..8d691f74 100644
--- a/hugegraph-llm/src/hugegraph_llm/config/config.py
+++ b/hugegraph-llm/src/hugegraph_llm/config/config.py
@@ -33,6 +33,16 @@
 yaml_file_path = os.path.join(package_path, f"src/hugegraph_llm/resources/demo/{F_NAME}")
 
 
+def read_dotenv() -> dict[str, Optional[str]]:
+    """Read a .env file in the given root path."""
+    env_config = dotenv_values(f"{env_path}")
+    log.info("Loading %s successfully!", env_path)
+    for key, value in env_config.items():
+        if key not in os.environ:
+            os.environ[key] = value or ""
+    return env_config
+
+
 @dataclass
 class Config(ConfigData):
     def from_env(self):
@@ -77,16 +87,6 @@ def update_env(self):
             set_key(env_path, k, v, quote_mode="never")
 
 
-def read_dotenv() -> dict[str, Optional[str]]:
-    """Read a .env file in the given root path."""
-    env_config = dotenv_values(f"{env_path}")
-    log.info("Loading %s successfully!", env_path)
-    for key, value in env_config.items():
-        if key not in os.environ:
-            os.environ[key] = value or ""
-    return env_config
-
-
 class PromptConfig(PromptData):
 
     def __init__(self):
diff --git a/hugegraph-llm/src/hugegraph_llm/config/config_data.py b/hugegraph-llm/src/hugegraph_llm/config/config_data.py
index 4e429cb7..07421908 100644
--- a/hugegraph-llm/src/hugegraph_llm/config/config_data.py
+++ b/hugegraph-llm/src/hugegraph_llm/config/config_data.py
@@ -95,15 +95,19 @@ class PromptData:
     # Data is detached from hugegraph-llm/src/hugegraph_llm/operators/llm_op/property_graph_extract.py
     extract_graph_prompt = """## Main Task
 Given the following graph schema and a piece of text, your task is to analyze the text and extract information that fits into the schema's structure, formatting the information into vertices and edges as specified.
+
 ## Basic Rules
 ### Schema Format
 Graph Schema:
 - Vertices: [List of vertex labels and their properties]
 - Edges: [List of edge labels, their source and target vertex labels, and properties]
+
 ### Content Rule
 Please read the provided text carefully and identify any information that corresponds to the vertices and edges defined in the schema. For each piece of information that matches a vertex or edge, format it according to the following JSON structures:
+
 #### Vertex Format:
 {"id":"vertexLabelID:entityName","label":"vertexLabel","type":"vertex","properties":{"propertyName":"propertyValue", ...}}
+
 #### Edge Format:
 {"label":"edgeLabel","type":"edge","outV":"sourceVertexId","outVLabel":"sourceVertexLabel","inV":"targetVertexId","inVLabel":"targetVertexLabel","properties":{"propertyName":"propertyValue",...}}
 Also follow the rules: 
@@ -112,12 +116,15 @@ class PromptData:
 3. If there are multiple primary keys, the strategy for generating VID is: vertexlabelID:pk1!pk2!pk3 (pk means primary key, and '!' is the separator)
 4. Output in JSON format, only include vertexes and edges & remove empty properties, extracted and formatted based on the text/rules and schema
 5. Translate the schema fields into Chinese if the given text is Chinese but the schema is in English (Optional)
+
 ## Example
 ### Input example:
 #### text
 Meet Sarah, a 30-year-old attorney, and her roommate, James, whom she's shared a home with since 2010. James, in his professional life, works as a journalist.  
+
 #### graph schema
 {"vertices":[{"vertex_label":"person","properties":["name","age","occupation"]}], "edges":[{"edge_label":"roommate", "source_vertex_label":"person","target_vertex_label":"person","properties":["date"]]}
+
 ### Output example:
 [{"id":"1:Sarah","label":"person","type":"vertex","properties":{"name":"Sarah","age":30,"occupation":"attorney"}},{"id":"1:James","label":"person","type":"vertex","properties":{"name":"James","occupation":"journalist"}},{"label":"roommate","type":"edge","outV":"1:Sarah","outVLabel":"person","inV":"1:James","inVLabel":"person","properties":{"date":"2010"}}]
 """
diff --git a/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/app.py b/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/app.py
index 0b5285aa..912b064f 100644
--- a/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/app.py
+++ b/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/app.py
@@ -25,6 +25,7 @@
 from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
 
 from hugegraph_llm.api.rag_api import rag_http_api
+from hugegraph_llm.config import settings, prompt
 from hugegraph_llm.demo.rag_demo.configs_block import (
     create_configs_block,
     apply_llm_config,
@@ -61,14 +62,64 @@ def init_rag_ui() -> gr.Interface:
     ) as hugegraph_llm_ui:
         gr.Markdown("# HugeGraph LLM RAG Demo")
 
-        create_configs_block()
+        """
+        TODO: leave a general idea of the unresolved part
+        graph_config_input = textbox_array_graph_config
+         = [settings.graph_ip, settings.graph_port, settings.graph_name, graph_user, settings.graph_pwd, settings.graph_space]
+        
+        llm_config_input = textbox_array_llm_config
+         = if settings.llm_type == openai [settings.openai_api_key, settings.openai_api_base, settings.openai_language_model, settings.openai_max_tokens]
+         = else if settings.llm_type == ollama [settings.ollama_host, settings.ollama_port, settings.ollama_language_model, ""]
+         = else if settings.llm_type == qianfan_wenxin [settings.qianfan_api_key, settings.qianfan_secret_key, settings.qianfan_language_model, ""]
+         = else ["","","", ""]
+
+        embedding_config_input = textbox_array_embedding_config
+         = if settings.embedding_type == openai [settings.openai_api_key, settings.openai_api_base, settings.openai_embedding_model]
+         = else if settings.embedding_type == ollama [settings.ollama_host, settings.ollama_port, settings.ollama_embedding_model]
+         = else if settings.embedding_type == qianfan_wenxin [settings.qianfan_api_key, settings.qianfan_secret_key, settings.qianfan_embedding_model]
+         = else ["","",""]
+
+        reranker_config_input = textbox_array_reranker_config
+         = if settings.reranker_type == cohere [settings.reranker_api_key, settings.reranker_model, settings.cohere_base_url]
+         = else if settings.reranker_type == siliconflow [settings.reranker_api_key, "BAAI/bge-reranker-v2-m3", ""]
+         = else ["","",""]
+        """
+        
+
+        textbox_array_graph_config = create_configs_block()
 
         with gr.Tab(label="1. Build RAG Index 💡"):
-            create_vector_graph_block()
+            textbox_input_schema, textbox_info_extract_template = create_vector_graph_block()
         with gr.Tab(label="2. (Graph)RAG & User Functions 📖"):
-            create_rag_block()
+            textbox_inp, textbox_answer_prompt_input = create_rag_block()
         with gr.Tab(label="3. Others Tools 🚧"):
             create_other_block()
+        
+
+        def refresh_ui_config_prompt() -> tuple:
+            settings.from_env()
+            prompt.ensure_yaml_file_exists()
+            return (
+                settings.graph_ip, settings.graph_port, settings.graph_name, settings.graph_user,
+                settings.graph_pwd, settings.graph_space, prompt.graph_schema, prompt.extract_graph_prompt,
+                prompt.default_question, prompt.answer_prompt
+            )
+
+
+        hugegraph_llm_ui.load(fn=refresh_ui_config_prompt, outputs=[
+            textbox_array_graph_config[0],
+            textbox_array_graph_config[1],
+            textbox_array_graph_config[2],
+            textbox_array_graph_config[3],
+            textbox_array_graph_config[4],
+            textbox_array_graph_config[5],
+
+            textbox_input_schema,
+            textbox_info_extract_template,
+
+            textbox_inp,
+            textbox_answer_prompt_input
+        ])
 
     return hugegraph_llm_ui
 
@@ -89,7 +140,6 @@ def init_rag_ui() -> gr.Interface:
     auth_enabled = os.getenv("ENABLE_LOGIN", "False").lower() == "true"
     log.info("(Status) Authentication is %s now.", "enabled" if auth_enabled else "disabled")
     # TODO: support multi-user login when need
-
     app = gr.mount_gradio_app(app, hugegraph_llm, path="/", auth=("rag", os.getenv("TOKEN")) if auth_enabled else None)
 
     # TODO: we can't use reload now due to the config 'app' of uvicorn.run
diff --git a/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/configs_block.py b/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/configs_block.py
index be161a80..824f41a8 100644
--- a/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/configs_block.py
+++ b/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/configs_block.py
@@ -179,8 +179,8 @@ def apply_llm_config(arg1, arg2, arg3, arg4, origin_call=None) -> int:
     settings.update_env()
     return status_code
 
-
-def create_configs_block():
+# TODO: refactor the function to reduce the number of statements & separate the logic
+def create_configs_block() -> list:
     # pylint: disable=R0915 (too-many-statements)
     with gr.Accordion("1. Set up the HugeGraph server.", open=False):
         with gr.Row():
@@ -226,10 +226,16 @@ def llm_settings(llm_type):
                         gr.Textbox(value="", visible=False),
                     ]
             else:
-                llm_config_input = []
-            llm_config_button = gr.Button("Apply Configuration")
+                llm_config_input = [
+                    gr.Textbox(value="", visible=False),
+                    gr.Textbox(value="", visible=False),
+                    gr.Textbox(value="", visible=False),
+                    gr.Textbox(value="", visible=False),
+                ]
+            llm_config_button = gr.Button("Apply configuration")
             llm_config_button.click(apply_llm_config, inputs=llm_config_input)  # pylint: disable=no-member
 
+
     with gr.Accordion("3. Set up the Embedding.", open=False):
         embedding_dropdown = gr.Dropdown(
             choices=["openai", "qianfan_wenxin", "ollama"], value=settings.embedding_type, label="Embedding"
@@ -245,13 +251,6 @@ def embedding_settings(embedding_type):
                         gr.Textbox(value=settings.openai_api_base, label="api_base"),
                         gr.Textbox(value=settings.openai_embedding_model, label="model_name"),
                     ]
-            elif embedding_type == "qianfan_wenxin":
-                with gr.Row():
-                    embedding_config_input = [
-                        gr.Textbox(value=settings.qianfan_api_key, label="api_key", type="password"),
-                        gr.Textbox(value=settings.qianfan_secret_key, label="secret_key", type="password"),
-                        gr.Textbox(value=settings.qianfan_embedding_model, label="model_name"),
-                    ]
             elif embedding_type == "ollama":
                 with gr.Row():
                     embedding_config_input = [
@@ -259,8 +258,19 @@ def embedding_settings(embedding_type):
                         gr.Textbox(value=str(settings.ollama_port), label="port"),
                         gr.Textbox(value=settings.ollama_embedding_model, label="model_name"),
                     ]
+            elif embedding_type == "qianfan_wenxin":
+                with gr.Row():
+                    embedding_config_input = [
+                        gr.Textbox(value=settings.qianfan_api_key, label="api_key", type="password"),
+                        gr.Textbox(value=settings.qianfan_secret_key, label="secret_key", type="password"),
+                        gr.Textbox(value=settings.qianfan_embedding_model, label="model_name"),
+                    ]
             else:
-                embedding_config_input = []
+                embedding_config_input = [
+                    gr.Textbox(value="", visible=False),
+                    gr.Textbox(value="", visible=False),
+                    gr.Textbox(value="", visible=False),
+                ]
 
             embedding_config_button = gr.Button("Apply Configuration")
 
@@ -296,10 +306,15 @@ def reranker_settings(reranker_type):
                             label="model",
                             info="Please refer to https://siliconflow.cn/pricing",
                         ),
+                        gr.Textbox(value="", visible=False),
                     ]
             else:
-                reranker_config_input = []
-            reranker_config_button = gr.Button("Apply Configuration")
+                reranker_config_input = [
+                    gr.Textbox(value="", visible=False),
+                    gr.Textbox(value="", visible=False),
+                    gr.Textbox(value="", visible=False),
+                ]
+            reranker_config_button = gr.Button("Apply configuration")
 
             # TODO: use "gr.update()" or other way to update the config in time (refactor the click event)
             # Call the separate apply_reranker_configuration function here
@@ -307,3 +322,5 @@ def reranker_settings(reranker_type):
                 fn=apply_reranker_config,
                 inputs=reranker_config_input,  # pylint: disable=no-member
             )
+    # The reason for returning this partial value is the functional need to refresh the ui
+    return graph_config_input
diff --git a/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/rag_block.py b/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/rag_block.py
index f514a833..66c9b19f 100644
--- a/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/rag_block.py
+++ b/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/rag_block.py
@@ -99,10 +99,9 @@ def create_rag_block():
             vector_only_out = gr.Textbox(label="Vector-only Answer", show_copy_button=True)
             graph_only_out = gr.Textbox(label="Graph-only Answer", show_copy_button=True)
             graph_vector_out = gr.Textbox(label="Graph-Vector Answer", show_copy_button=True)
-            from hugegraph_llm.operators.llm_op.answer_synthesize import DEFAULT_ANSWER_TEMPLATE
 
             answer_prompt_input = gr.Textbox(
-                value=DEFAULT_ANSWER_TEMPLATE, label="Custom Prompt", show_copy_button=True, lines=7
+                value=prompt.answer_prompt, label="Custom Prompt", show_copy_button=True, lines=7
             )
         with gr.Column(scale=1):
             with gr.Row():
@@ -266,3 +265,4 @@ def several_rag_answer(
     )
     questions_file.change(read_file_to_excel, questions_file, [qa_dataframe, answer_max_line_count])
     answer_max_line_count.change(change_showing_excel, answer_max_line_count, qa_dataframe)
+    return inp, answer_prompt_input
\ No newline at end of file
diff --git a/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/vector_graph_block.py b/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/vector_graph_block.py
index 1319bd93..1af8a518 100644
--- a/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/vector_graph_block.py
+++ b/hugegraph-llm/src/hugegraph_llm/demo/rag_demo/vector_graph_block.py
@@ -22,7 +22,6 @@
 import gradio as gr
 
 from hugegraph_llm.config import resource_path, prompt
-from hugegraph_llm.operators.llm_op.property_graph_extract import SCHEMA_EXAMPLE_PROMPT
 from hugegraph_llm.utils.graph_index_utils import (
     get_graph_index_info,
     clean_all_graph_index,
@@ -33,22 +32,31 @@
 from hugegraph_llm.utils.vector_index_utils import clean_vector_index, build_vector_index, get_vector_index_info
 
 
+def store_prompt(schema, example_prompt):
+    # update env variables: schema and example_prompt
+    if prompt.graph_schema != schema or prompt.extract_graph_prompt != example_prompt:
+        prompt.graph_schema = schema
+        prompt.extract_graph_prompt = example_prompt
+        prompt.update_yaml_file()
+
+
 def create_vector_graph_block():
+    # pylint: disable=no-member
     gr.Markdown(
         """## 1. Build Vector/Graph Index & Extract Knowledge Graph
 - Docs:
   - text: Build rag index from plain text
   - file: Upload file(s) which should be <u>TXT</u> or <u>.docx</u> (Multiple files can be selected together)
 - [Schema](https://hugegraph.apache.org/docs/clients/restful-api/schema/): (Accept **2 types**)
-  - User-defined Schema (JSON format, follow the template to modify it)
+  - User-defined Schema (JSON format, follow the [template](https://github.com/apache/incubator-hugegraph-ai/blob/aff3bbe25fa91c3414947a196131be812c20ef11/hugegraph-llm/src/hugegraph_llm/config/config_data.py#L125) 
+  to modify it)
   - Specify the name of the HugeGraph graph instance, it will automatically get the schema from it (like 
   **"hugegraph"**)
 - Graph extract head: The user-defined prompt of graph extracting
+- If already exist the graph data, you should click "**Rebuild vid Index**" to update the index
 """
     )
 
-    schema = prompt.graph_schema
-
     with gr.Row():
         with gr.Column():
             with gr.Tab("text") as tab_upload_text:
@@ -59,9 +67,9 @@ def create_vector_graph_block():
                     label="Docs (multi-files can be selected together)",
                     file_count="multiple",
                 )
-        input_schema = gr.Textbox(value=schema, label="Schema", lines=15, show_copy_button=True)
+        input_schema = gr.Textbox(value=prompt.graph_schema, label="Schema", lines=15, show_copy_button=True)
         info_extract_template = gr.Textbox(
-            value=SCHEMA_EXAMPLE_PROMPT, label="Graph extract head", lines=15, show_copy_button=True
+            value=prompt.extract_graph_prompt, label="Graph extract head", lines=15, show_copy_button=True
         )
         out = gr.Code(label="Output", language="json", elem_classes="code-container-edit")
 
@@ -80,21 +88,40 @@ def create_vector_graph_block():
         graph_extract_bt = gr.Button("Extract Graph Data (1)", variant="primary")
         graph_loading_bt = gr.Button("Load into GraphDB (2)", interactive=True)
 
-    vector_index_btn0.click(get_vector_index_info, outputs=out)  # pylint: disable=no-member
-    vector_index_btn1.click(clean_vector_index)  # pylint: disable=no-member
-    vector_import_bt.click(
-        build_vector_index, inputs=[input_file, input_text], outputs=out
-    )  # pylint: disable=no-member
-    graph_index_btn0.click(get_graph_index_info, outputs=out)  # pylint: disable=no-member
-    graph_index_btn1.click(clean_all_graph_index)  # pylint: disable=no-member
-    graph_index_rebuild_bt.click(fit_vid_index, outputs=out)  # pylint: disable=no-member
+    vector_index_btn0.click(get_vector_index_info, outputs=out).then(
+        store_prompt,
+        inputs=[input_schema, info_extract_template],
+    )
+    vector_index_btn1.click(clean_vector_index).then(
+        store_prompt,
+        inputs=[input_schema, info_extract_template],
+    )
+    vector_import_bt.click(build_vector_index, inputs=[input_file, input_text], outputs=out).then(
+        store_prompt,
+        inputs=[input_schema, info_extract_template],
+    )
+    graph_index_btn0.click(get_graph_index_info, outputs=out).then(
+        store_prompt,
+        inputs=[input_schema, info_extract_template],
+    )
+    graph_index_btn1.click(clean_all_graph_index).then(
+        store_prompt,
+        inputs=[input_schema, info_extract_template],
+    )
+    graph_index_rebuild_bt.click(fit_vid_index, outputs=out).then(
+        store_prompt,
+        inputs=[input_schema, info_extract_template],
+    )
 
     # origin_out = gr.Textbox(visible=False)
-    graph_extract_bt.click(  # pylint: disable=no-member
+    graph_extract_bt.click(
         extract_graph, inputs=[input_file, input_text, input_schema, info_extract_template], outputs=[out]
-    )
+    ).then(store_prompt, inputs=[input_schema, info_extract_template], )
 
-    graph_loading_bt.click(import_graph_data, inputs=[out, input_schema], outputs=[out])  # pylint: disable=no-member
+    graph_loading_bt.click(import_graph_data, inputs=[out, input_schema], outputs=[out]).then(
+        store_prompt,
+        inputs=[input_schema, info_extract_template],
+    )
 
     def on_tab_select(input_f, input_t, evt: gr.SelectData):
         print(f"You selected {evt.value} at {evt.index} from {evt.target}")
@@ -104,9 +131,7 @@ def on_tab_select(input_f, input_t, evt: gr.SelectData):
             return [], input_t
         return [], ""
 
-    tab_upload_file.select(
-        fn=on_tab_select, inputs=[input_file, input_text], outputs=[input_file, input_text]
-    )  # pylint: disable=no-member
-    tab_upload_text.select(
-        fn=on_tab_select, inputs=[input_file, input_text], outputs=[input_file, input_text]
-    )  # pylint: disable=no-member
+    tab_upload_file.select(fn=on_tab_select, inputs=[input_file, input_text], outputs=[input_file, input_text])
+    tab_upload_text.select(fn=on_tab_select, inputs=[input_file, input_text], outputs=[input_file, input_text])
+
+    return input_schema, info_extract_template
diff --git a/hugegraph-llm/src/hugegraph_llm/operators/llm_op/answer_synthesize.py b/hugegraph-llm/src/hugegraph_llm/operators/llm_op/answer_synthesize.py
index 2771ceff..baf61e64 100644
--- a/hugegraph-llm/src/hugegraph_llm/operators/llm_op/answer_synthesize.py
+++ b/hugegraph-llm/src/hugegraph_llm/operators/llm_op/answer_synthesize.py
@@ -25,6 +25,11 @@
 from hugegraph_llm.models.llms.init_llm import LLMs
 from hugegraph_llm.utils.log import log
 
+"""
+TODO: It is not clear whether there is any other dependence on the SCHEMA_EXAMPLE_PROMPT variable. 
+Because the SCHEMA_EXAMPLE_PROMPT variable will no longer change based on 
+prompt.extract_graph_prompt changes after the system loads, this does not seem to meet expectations.
+"""
 DEFAULT_ANSWER_TEMPLATE = prompt.answer_prompt
 
 
diff --git a/hugegraph-llm/src/hugegraph_llm/operators/llm_op/property_graph_extract.py b/hugegraph-llm/src/hugegraph_llm/operators/llm_op/property_graph_extract.py
index 523a8b84..945fd303 100644
--- a/hugegraph-llm/src/hugegraph_llm/operators/llm_op/property_graph_extract.py
+++ b/hugegraph-llm/src/hugegraph_llm/operators/llm_op/property_graph_extract.py
@@ -26,8 +26,15 @@
 from hugegraph_llm.models.llms.base import BaseLLM
 from hugegraph_llm.utils.log import log
 
+
+"""
+TODO: It is not clear whether there is any other dependence on the SCHEMA_EXAMPLE_PROMPT variable. 
+Because the SCHEMA_EXAMPLE_PROMPT variable will no longer change based on 
+prompt.extract_graph_prompt changes after the system loads, this does not seem to meet expectations.
+"""
 SCHEMA_EXAMPLE_PROMPT = prompt.extract_graph_prompt
 
+
 def generate_extract_property_graph_prompt(text, schema=None) -> str:
     return f"""---
 Following the full instructions above, try to extract the following text from the given schema, output the JSON result:
@@ -83,7 +90,7 @@ class PropertyGraphExtract:
     def __init__(
             self,
             llm: BaseLLM,
-            example_prompt: str = SCHEMA_EXAMPLE_PROMPT
+            example_prompt: str = prompt.extract_graph_prompt
     ) -> None:
         self.llm = llm
         self.example_prompt = example_prompt
diff --git a/hugegraph-llm/src/hugegraph_llm/utils/graph_index_utils.py b/hugegraph-llm/src/hugegraph_llm/utils/graph_index_utils.py
index 5735eae7..a8ea1156 100644
--- a/hugegraph-llm/src/hugegraph_llm/utils/graph_index_utils.py
+++ b/hugegraph-llm/src/hugegraph_llm/utils/graph_index_utils.py
@@ -26,7 +26,7 @@
 from .hugegraph_utils import get_hg_client, clean_hg_data
 from .log import log
 from .vector_index_utils import read_documents
-from ..config import resource_path, settings, prompt
+from ..config import resource_path, settings
 from ..indices.vector_index import VectorIndex
 from ..models.embeddings.init_embedding import Embeddings
 from ..models.llms.init_llm import LLMs
@@ -52,11 +52,6 @@ def clean_all_graph_index():
 
 
 def extract_graph(input_file, input_text, schema, example_prompt) -> str:
-    # update env variables: schema and example_prompt
-    if prompt.graph_schema != schema or prompt.extract_graph_prompt != example_prompt:
-        prompt.graph_schema = schema
-        prompt.extract_graph_prompt = example_prompt
-        prompt.update_yaml_file()
 
     texts = read_documents(input_file, input_text)
     builder = KgBuilder(LLMs().get_llm(), Embeddings().get_embedding(), get_hg_client())
diff --git a/hugegraph-llm/src/hugegraph_llm/utils/vector_index_utils.py b/hugegraph-llm/src/hugegraph_llm/utils/vector_index_utils.py
index edd1902f..a7afdf8a 100644
--- a/hugegraph-llm/src/hugegraph_llm/utils/vector_index_utils.py
+++ b/hugegraph-llm/src/hugegraph_llm/utils/vector_index_utils.py
@@ -19,6 +19,7 @@
 
 import docx
 import gradio as gr
+
 from hugegraph_llm.config import resource_path, settings
 from hugegraph_llm.indices.vector_index import VectorIndex
 from hugegraph_llm.models.embeddings.init_embedding import Embeddings