diff --git a/mcp_docx_server.py b/mcp_docx_server.py
index 93c8278..f6b52f8 100644
--- a/mcp_docx_server.py
+++ b/mcp_docx_server.py
@@ -181,7 +181,7 @@ async def edit_docx(input_docx_path: str, replacements: Optional[List[Dict[str,
       - 替换指定序号的图片
 
     参数:
-      - input_docx_path: 输入 DOCX 文件路径
+      - input_docx_path: 输入 DOCX 文件名称
       - replacements: 文本替换规则列表，例如:
             [
               {\"old\": \"旧标题\", \"new\": \"<span color='#FF0000'>新标题</span>\"},
@@ -204,7 +204,8 @@ async def edit_docx(input_docx_path: str, replacements: Optional[List[Dict[str,
     tmp_images: List[str] = []
     print(f"edit_docx: input_docx_path: {input_docx_path}, replacements: {replacements}, image_replacements: {image_replacements}")
     try:
-        local_input = input_docx_path
+        upload_dir = _get_upload_dir()
+        local_input = os.path.join(upload_dir, input_docx_path)
         if _is_url(input_docx_path):
             parsed = urllib.parse.urlparse(input_docx_path)
             ext = os.path.splitext(parsed.path)[1] or ".docx"