diff --git a/config/config.py b/config/config.py
index 6804a94..d1dc48c 100644
--- a/config/config.py
+++ b/config/config.py
@@ -1,7 +1,11 @@
 from enum import Enum, auto
+
+from tool.DownloadPathTool import get_config_path
+
 port = 8426
-priKeySavePath = "./private.pem"
-pubKeySavePath = "./public.pem"
+configPath = get_config_path()
+priKeySavePath = f"{configPath}/private.pem"
+pubKeySavePath = f"{configPath}/public.pem"
 
 class EncryptType(Enum):
     AES_ECB = auto()
diff --git a/tool/DownloadPathTool.py b/tool/DownloadPathTool.py
index b365591..988195a 100644
--- a/tool/DownloadPathTool.py
+++ b/tool/DownloadPathTool.py
@@ -3,6 +3,18 @@ import sys
 import winreg
 from pathlib import Path
 
+def get_config_path():
+    if sys.platform == 'win32':
+        # 展开环境变量并转换为标准格式
+        download_dir = Path(os.path.expandvars("%appdata%/fst")).resolve()
+    else:
+        # 对于非 Windows 系统，使用 ~\Downloads 作为默认下载目录
+        home_dir = Path.home()
+        download_dir = home_dir / 'fst'
+    dir_path = Path(download_dir)
+    if not dir_path.exists():
+        dir_path.mkdir(parents=True, exist_ok=True)
+    return str(download_dir)
 
 def get_download_directory():
     if sys.platform == 'win32':