diff --git a/Sources/App/MenuBarController.swift b/Sources/App/MenuBarController.swift
index 65f1ad4..2e82226 100644
--- a/Sources/App/MenuBarController.swift
+++ b/Sources/App/MenuBarController.swift
@@ -78,10 +78,18 @@ final class MenuBarController: NSObject {
             languageMenuItems.append(item)
         }
 
+        // 禁用 autoenablesItems，防止系统自动禁用菜单项
+        languageMenu.autoenablesItems = false
+        
         let languageSubmenuItem = NSMenuItem()
         languageSubmenuItem.title = "Language"
         languageSubmenuItem.submenu = languageMenu
         menu.addItem(languageSubmenuItem)
+        
+        // 调试：打印每个语言菜单项的状态
+        for item in languageMenuItems {
+            print("[Menu Debug] Language item: '\(item.title)' enabled=\(item.isEnabled) target=\(String(describing: item.target)) action=\(String(describing: item.action))")
+        }
 
         menu.addItem(.separator())
 
@@ -109,10 +117,18 @@ final class MenuBarController: NSObject {
         modeMenuItems.append(assistModeItem)
         modeMenu.addItem(assistModeItem)
 
+        // 禁用 autoenablesItems，防止系统自动禁用菜单项
+        modeMenu.autoenablesItems = false
+        
         let modeSubmenuItem = NSMenuItem()
         modeSubmenuItem.title = "Mode"
         modeSubmenuItem.submenu = modeMenu
         menu.addItem(modeSubmenuItem)
+        
+        // 调试：打印每个模式菜单项的状态
+        for item in modeMenuItems {
+            print("[Menu Debug] Mode item: '\(item.title)' enabled=\(item.isEnabled) target=\(String(describing: item.target)) action=\(String(describing: item.action))")
+        }
 
         menu.addItem(.separator())
 
@@ -167,9 +183,24 @@ final class MenuBarController: NSObject {
         quitItem.target = self
         menu.addItem(quitItem)
 
+        // 关闭所有菜单的自动验证，改为手动管理
+        menu.autoenablesItems = false
+        languageMenu.autoenablesItems = false
+        modeMenu.autoenablesItems = false
+        inputLLMSubmenu.autoenablesItems = false
+        assistLLMSubmenu.autoenablesItems = false
+
         statusItem.menu = menu
     }
 
+    // MARK: - NSMenuItemValidation
+
+    /// 手动验证所有菜单项（替代系统的自动验证）
+    @objc func validateMenuItem(_ menuItem: NSMenuItem) -> Bool {
+        // 所有菜单项统一启用，由 target/action 决定是否响应
+        return true
+    }
+
     private func updateInputLLMMenuState() {
         inputLLMEnabledItem.state = Config.shared.inputLLM.enabled ? .on : .off
     }
@@ -196,14 +227,22 @@ final class MenuBarController: NSObject {
     }
 
     @objc private func selectLanguage(_ sender: NSMenuItem) {
-        guard let lang = sender.representedObject as? RecognitionLanguage else { return }
+        print("[Menu Debug] selectLanguage called! sender.title=\(sender.title) sender.representedObject=\(String(describing: sender.representedObject))")
+        guard let lang = sender.representedObject as? RecognitionLanguage else {
+            print("[Menu Debug] selectLanguage FAILED: representedObject is not RecognitionLanguage, actual type: \(type(of: sender.representedObject))")
+            return
+        }
         Config.shared.language = lang
         updateLanguageMenuState()
         print("[Menu] Language switched to: \(lang.displayName)")
     }
 
     @objc private func selectMode(_ sender: NSMenuItem) {
-        guard let mode = sender.representedObject as? TriggerMode else { return }
+        print("[Menu Debug] selectMode called! sender.title=\(sender.title) sender.representedObject=\(String(describing: sender.representedObject))")
+        guard let mode = sender.representedObject as? TriggerMode else {
+            print("[Menu Debug] selectMode FAILED: representedObject is not TriggerMode, actual type: \(type(of: sender.representedObject))")
+            return
+        }
         Config.shared.triggerMode = mode
         updateModeMenuState()
         print("[Menu] Mode switched to: \(mode)")