diff --git a/img/chatchat_icon_blue_square_v2.png b/img/chatchat_icon_blue_square_v2.png
new file mode 100644
index 0000000..5de8ee8
Binary files /dev/null and b/img/chatchat_icon_blue_square_v2.png differ
diff --git a/img/logo-long-chatchat-trans-v2.png b/img/logo-long-chatchat-trans-v2.png
new file mode 100644
index 0000000..7a689e8
Binary files /dev/null and b/img/logo-long-chatchat-trans-v2.png differ
diff --git a/webui.py b/webui.py
index 6077b81..160244a 100644
--- a/webui.py
+++ b/webui.py
@@ -8,6 +8,7 @@ import streamlit as st
 from webui_pages.utils import *
 from streamlit_option_menu import option_menu
 from webui_pages import *
+import os
 
 api = ApiRequest(base_url="http://127.0.0.1:7861", no_remote_api=False)
 
@@ -32,15 +33,23 @@ if __name__ == "__main__":
     }
         
     with st.sidebar:
+        st.image(
+            os.path.join(
+                os.path.dirname(__file__),
+                "img",
+                "logo-long-chatchat-trans-v2.png"
+            ),
+            use_column_width=True
+        )
         options = list(pages)
         icons = [x["icon"] for x in pages.values()]
 
         default_index = 0
         selected_page = option_menu(
-            "langchain-chatglm",
+            "",
             options=options,
             icons=icons,
-            menu_icon="chat-quote",
+            # menu_icon="chat-quote",
             default_index=default_index,
         )
 
diff --git a/webui_pages/dialogue/dialogue.py b/webui_pages/dialogue/dialogue.py
index 43334c3..6a806bd 100644
--- a/webui_pages/dialogue/dialogue.py
+++ b/webui_pages/dialogue/dialogue.py
@@ -4,8 +4,15 @@ from streamlit_chatbox import *
 from datetime import datetime
 from server.chat.search_engine_chat import SEARCH_ENGINES
 from typing import List, Dict
+import os
 
-chat_box = ChatBox()
+chat_box = ChatBox(
+    assistant_avatar=os.path.join(
+        os.path.dirname(os.path.dirname(os.path.dirname(__file__))),
+        "img",
+        "chatchat_icon_blue_square_v2.png"
+    )
+)
 
 
 def get_messages_history(history_len: int) -> List[Dict]:
@@ -46,14 +53,15 @@ def dialogue_page(api: ApiRequest):
             # sac.alert(text, description="descp", type="success", closable=True, banner=True)
 
         dialogue_mode = st.selectbox("请选择对话模式",
-                                 ["LLM 对话",
-                                  "知识库问答",
-                                  "搜索引擎问答",
-                                ],
-                                on_change=on_mode_change,
-                                key="dialogue_mode",
-                                )
+                                     ["LLM 对话",
+                                      "知识库问答",
+                                      "搜索引擎问答",
+                                      ],
+                                     on_change=on_mode_change,
+                                     key="dialogue_mode",
+                                     )
         history_len = st.number_input("历史对话轮数：", 0, 10, 3)
+
         # todo: support history len
 
         def on_kb_change():