diff --git a/src/routers/deep_agent_chat.py b/src/routers/deep_agent_chat.py
index 0ec68d9..958c958 100755
--- a/src/routers/deep_agent_chat.py
+++ b/src/routers/deep_agent_chat.py
@@ -9,6 +9,7 @@ from fastapi import APIRouter
 from typing import AsyncGenerator
 from fastapi.responses import StreamingResponse
 from langchain_core.messages import SystemMessage, AIMessageChunk, ToolMessage, AIMessage, ToolMessageChunk
+from minio.commonconfig import CopySource
 
 from src.core.config import PROJECT_ROOT, settings
 from src.server.deep_agent.agents.main_agent import build_main_agent, Context
@@ -175,7 +176,9 @@ async def chat_stream(request: DeepAgentChatRequest):
                 input_image_content += f"- 上传图片{i}: {path}\n"
 
                 bucket, object_name = path.split('/', 1)
-                image_url = get_presigned_url(oss_client=minio_client, bucket=bucket, object_name=object_name)
+                # image_url = get_presigned_url(oss_client=minio_client, bucket=bucket, object_name=object_name)
+                copy_result = minio_client.copy_object("fida-public-bucket", path, CopySource(bucket, object_name))
+                image_url = f"https://www.minio-api.aida.com.hk/{copy_result.bucket_name}/{copy_result.object_name}"
                 content.append({"type": "image_url", "image_url": {"url": image_url}})
                 files["input_image"].append(path)
 
@@ -185,11 +188,13 @@ async def chat_stream(request: DeepAgentChatRequest):
             input_image_content += f"- 引用图片: {request.quote_image_path}\n"
 
             bucket, object_name = request.quote_image_path.split('/', 1)
-            image_url = get_presigned_url(oss_client=minio_client, bucket=bucket, object_name=object_name)
+            # image_url = get_presigned_url(oss_client=minio_client, bucket=bucket, object_name=object_name)
+            copy_result = minio_client.copy_object("fida-public-bucket", request.quote_image_path, CopySource(bucket, object_name))
+            image_url = f"https://www.minio-api.aida.com.hk/{copy_result.bucket_name}/{copy_result.object_name}"
             content.append({"type": "image_url", "image_url": {"url": image_url}})
             files["quote_image"] = request.quote_image_path
 
-        if initial_messages:
+        if input_image_content:
             content[0]['text'] += input_image_content
         final_messages = {
             "messages": [