diff --git a/app/api/upload.py b/app/api/upload.py
index 43b68e9..830aaea 100644
--- a/app/api/upload.py
+++ b/app/api/upload.py
@@ -1,8 +1,13 @@
 from fastapi import APIRouter, UploadFile, File, Form, HTTPException
 import os
 import shutil
+import logging
 from scripts.rag_build_query import build_user_index
 
+# 设置日志
+logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
+logger = logging.getLogger(__name__)
+
 router = APIRouter()
 ALLOWED_SUFFIXES = {".txt", ".md", ".pdf", ".docx"}
 
@@ -29,7 +34,7 @@ def upload_user_file(user_id: str = Form(...), file: UploadFile = File(...)):
     try:
         with open(file_path, "wb") as f:
             shutil.copyfileobj(file.file, f)
-        print(f"[UPLOAD] 文件已保存至 {file_path}")
+        logger.info(f"文件已保存至 {file_path}")
 
         # 创建索引并保存 docstore.json
         docstore_path = os.path.join(index_data_dir, "docstore.json")
@@ -39,10 +44,10 @@ def upload_user_file(user_id: str = Form(...), file: UploadFile = File(...)):
 
         # 重新构建用户索引
         build_user_index(user_id)
-        print(f"[UPLOAD] 用户 {user_id} 的索引已重建")
+        logger.info(f"用户 {user_id} 的索引已重建")
 
     except Exception as e:
-        print(f"[UPLOAD ERROR] {e}")
+        logger.error(f"[UPLOAD ERROR] {e}")
         raise HTTPException(status_code=500, detail="索引构建失败")
 
     return {"status": "ok", "filename": filename}