diff --git a/build/pkg-scripts/postinstall b/build/pkg-scripts/postinstall
index c37baa8..83e3afd 100644
--- a/build/pkg-scripts/postinstall
+++ b/build/pkg-scripts/postinstall
@@ -74,7 +74,9 @@ cat << EOF > "$LAUNCH_DAEMON"
     <key>Label</key>
     <string>party.mihomo.helper</string>
     <key>AssociatedBundleIdentifiers</key>
-    <string>party.mihomo.app</string>
+    <array>
+        <string>party.mihomo.app</string>
+    </array>
     <key>KeepAlive</key>
     <true/>
     <key>Program</key>
@@ -91,18 +93,62 @@ chown root:wheel "$LAUNCH_DAEMON"
 chmod 644 "$LAUNCH_DAEMON"
 log "LaunchDaemon configured"
 
-# 加载并启动服务
-log "Loading and starting service..."
-launchctl unload "$LAUNCH_DAEMON" 2>/dev/null || true
-if ! launchctl load "$LAUNCH_DAEMON"; then
-    log "Error: Failed to load helper service"
+# 验证关键文件
+log "Verifying installation..."
+if [ ! -x "$HELPER_PATH" ]; then
+    log "Error: Helper tool is not executable: $HELPER_PATH"
     exit 1
 fi
 
-if ! launchctl start party.mihomo.helper; then
-    log "Error: Failed to start helper service"
+# 检查二进制文件有效性
+if ! file "$HELPER_PATH" | grep -q "Mach-O"; then
+    log "Error: Helper tool is not a valid Mach-O binary"
     exit 1
 fi
 
+# 验证 plist 格式
+if ! plutil -lint "$LAUNCH_DAEMON" >/dev/null 2>&1; then
+    log "Error: Invalid plist format"
+    exit 1
+fi
+
+# 获取 macOS 版本
+macos_version=$(sw_vers -productVersion)
+macos_major=$(echo "$macos_version" | cut -d. -f1)
+log "macOS version: $macos_version"
+
+# 清理现有服务
+log "Cleaning up existing services..."
+launchctl bootout system "$LAUNCH_DAEMON" 2>/dev/null || true
+launchctl unload "$LAUNCH_DAEMON" 2>/dev/null || true
+
+# 加载服务
+log "Loading service..."
+if [ "$macos_major" -ge 11 ]; then
+    # macOS Big Sur 及更新版本使用 bootstrap
+    if ! launchctl bootstrap system "$LAUNCH_DAEMON"; then
+        log "Bootstrap failed, trying legacy load..."
+        if ! launchctl load "$LAUNCH_DAEMON"; then
+            log "Error: Failed to load service with both methods"
+            exit 1
+        fi
+    fi
+else
+    # 旧版本使用 load
+    if ! launchctl load "$LAUNCH_DAEMON"; then
+        log "Error: Failed to load service"
+        exit 1
+    fi
+fi
+
+# 验证服务状态
+log "Verifying service status..."
+sleep 2
+if launchctl list | grep -q "party.mihomo.helper"; then
+    log "Service loaded successfully"
+else
+    log "Warning: Service may not be running properly"
+fi
+
 log "Installation completed successfully"
 exit 0