diff --git a/backend/config.py b/backend/config.py
index 091ab9e..ea678c0 100644
--- a/backend/config.py
+++ b/backend/config.py
@@ -1,5 +1,6 @@
 
 import os
+import sys
 from pathlib import Path
 from qfluentwidgets import (qconfig, ConfigItem, QConfig, OptionsValidator, BoolValidator, OptionsConfigItem, 
                             EnumSerializer, RangeValidator, RangeConfigItem, ConfigValidator)
@@ -101,7 +102,13 @@ class Config(QConfig):
     # 视频保存目录
     saveDirectory = ConfigItem("Main", "SaveDirectory", "", ConfigValidator())
 
-CONFIG_FILE = 'config/config.json'
+# PyInstaller 打包后配置文件写入 .app bundle 同级目录（避免修改签名）
+if getattr(sys, 'frozen', False):
+    # sys.executable -> Contents/MacOS/VideoSubtitleRemover, 向上3级到 .app 所在目录
+    _app_dir = os.path.dirname(os.path.dirname(os.path.dirname(sys.executable)))
+    CONFIG_FILE = os.path.join(_app_dir, 'config', 'config.json')
+else:
+    CONFIG_FILE = 'config/config.json'
 config = Config()
 qconfig.load(CONFIG_FILE, config)
 
diff --git a/backend/main.py b/backend/main.py
index b067f1c..d11df57 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -379,6 +379,7 @@ class SubtitleRemover:
 
 
 if __name__ == '__main__':
+    multiprocessing.freeze_support()
     multiprocessing.set_start_method("spawn")
     from backend.tools.args_handler import parse_args
     args = parse_args()
diff --git a/gui.py b/gui.py
index fffb63a..7a4714f 100644
--- a/gui.py
+++ b/gui.py
@@ -8,6 +8,14 @@
 
 import sys
 import os
+
+# PyInstaller 打包后资源路径处理
+def resource_path(relative_path):
+    """获取资源文件的绝对路径（兼容 PyInstaller 打包）"""
+    if getattr(sys, 'frozen', False):
+        return os.path.join(sys._MEIPASS, relative_path)
+    return os.path.join(os.path.abspath(os.path.dirname(__file__)), relative_path)
+
 import configparser
 import cv2
 import multiprocessing
@@ -42,7 +50,7 @@ class SubtitleExtractorGUI(FluentWindow):
         # self.themeListener.start()
  
         # 设置窗口图标
-        self.setWindowIcon(QtGui.QIcon("design/vsr.ico"))
+        self.setWindowIcon(QtGui.QIcon(resource_path("design/vsr.ico")))
         self.setWindowTitle(tr['SubtitleExtractorGUI']['Title'] + " v" + VERSION)
         # 创建界面布局
         self._create_layout()
@@ -162,6 +170,7 @@ class SubtitleExtractorGUI(FluentWindow):
 
 
 if __name__ == '__main__':
+    multiprocessing.freeze_support()
     multiprocessing.set_start_method("spawn")
     QApplication.setHighDpiScaleFactorRoundingPolicy(
     Qt.HighDpiScaleFactorRoundingPolicy.PassThrough)