diff --git a/scripts/tui.py b/scripts/tui.py
index c10f244..1bdf934 100644
--- a/scripts/tui.py
+++ b/scripts/tui.py
@@ -597,21 +597,24 @@ def dirs_menu() -> None:
 
 
 def backup_now() -> None:
-    """菜单 13: 一键备份 (相册/文档/下载/聊天记录)"""
+    """菜单 13: 一键备份 (相册/文档/下载/聊天记录/指定目录)"""
     print("--- 一键备份 ---")
-    print("  备份项: photos (相册) / documents (文档) / download (下载) / chat (聊天记录)")
-    print("  源目录在 config.json 的 backup 段配置, 增量备份只传新文件")
-    names = _clean(input("  备份项 (回车=全部): ").strip())
-    if names:
-        run(["backup.py"] + names.split())
-    else:
+    print("  预设项: photos (相册) / documents (文档) / download (下载) / chat (聊天记录)")
+    print("  或直接输入目录路径备份指定目录 (如 /home/lou/图片), 回车=全部")
+    val = _clean(input("  备份项或目录 (回车=全部): ").strip())
+    if not val:
         run(["backup.py"])
+    elif os.path.isdir(os.path.expanduser(val)):
+        run(["backup.py", "--dir", val])
+    else:
+        run(["backup.py"] + val.split())
 
 
 def restore_backup() -> None:
     """菜单 14: 恢复备份"""
     print("--- 恢复备份 ---")
-    name = _clean(input("  备份项 (photos/documents/download/chat): ").strip())
+    print("  备份项: photos/documents/download/chat 或自定义目录名 (--dir 备份的)")
+    name = _clean(input("  备份项: ").strip())
     if not name:
         print("[提示] 已取消")
         return