diff --git a/docs/features/assistant-workbar/prd.md b/docs/features/assistant-workbar/prd.md
index 57f5db74..4502d833 100644
--- a/docs/features/assistant-workbar/prd.md
+++ b/docs/features/assistant-workbar/prd.md
@@ -444,7 +444,7 @@ Renderer 不接收任意系统 PID 控制能力。控制动作引用 Main 签发
 - 文件预览保留在右侧工作区内；预览期间隐藏列表但保持目录树挂载，返回后保留已展开
   目录、滚动位置和选中行，并恢复触发行焦点。Diff 返回未提交更改列表时同样恢复
   滚动位置、选中行和焦点。
-- 文件预览提供复制项目相对路径、刷新，以及仅本机项目可用的“使用默认应用打开”。
+- 文件预览提供复制项目相对路径、刷新，以及仅本机项目可用的“使用系统应用打开”。
   刷新失败保留此前内容并显示错误；Markdown 默认渲染预览，可切换源码。
 - Diff 提供刷新、复制项目相对路径和“查看当前文件”；删除项不显示查看当前文件入口。
   文件路径与操作按钮位于分隔线上方，空间不足时换行；只有未暂存差异时省略“工作树更改”标题，同时存在已暂存差异时保留分区标题。
diff --git a/src/renderer/src/App.test.tsx b/src/renderer/src/App.test.tsx
index dba4096a..8398d582 100644
--- a/src/renderer/src/App.test.tsx
+++ b/src/renderer/src/App.test.tsx
@@ -8056,9 +8056,9 @@ describe("App", () => {
     fireEvent.click(screen.getByLabelText("切换助手工作栏"));
     fireEvent.click(await screen.findByRole("tab", { name: "工作区" }));
     fireEvent.click(await screen.findByLabelText("docs 的更多操作"));
-    fireEvent.click(within(screen.getByRole("menu", { name: "docs" })).getByRole("menuitem", { name: "使用默认应用打开" }));
+    fireEvent.click(within(screen.getByRole("menu", { name: "docs" })).getByRole("menuitem", { name: "使用系统应用打开" }));
     fireEvent.click(screen.getByLabelText("README.md 的更多操作"));
-    fireEvent.click(within(screen.getByRole("menu", { name: "README.md" })).getByRole("menuitem", { name: "使用默认应用打开" }));
+    fireEvent.click(within(screen.getByRole("menu", { name: "README.md" })).getByRole("menuitem", { name: "使用系统应用打开" }));
     await waitFor(() =>
       expect(api.workspace.openPath).toHaveBeenCalledWith(
         projectId,
diff --git a/src/renderer/src/WorkspaceFilesPanel.test.tsx b/src/renderer/src/WorkspaceFilesPanel.test.tsx
index ddbb4b1a..6b4bf7f9 100644
--- a/src/renderer/src/WorkspaceFilesPanel.test.tsx
+++ b/src/renderer/src/WorkspaceFilesPanel.test.tsx
@@ -501,10 +501,10 @@ describe('WorkspaceFilesPanel', () => {
     expect(onListDirectory).toHaveBeenCalledWith('docs')
     expect(onOpenFile).toHaveBeenCalledWith('docs/guide.md')
     fireEvent.click(screen.getByLabelText('guide.md 的更多操作'))
-    fireEvent.click(within(screen.getByRole('menu', { name: 'guide.md' })).getByRole('menuitem', { name: '使用默认应用打开' }))
+    fireEvent.click(within(screen.getByRole('menu', { name: 'guide.md' })).getByRole('menuitem', { name: '使用系统应用打开' }))
     expect(onOpenEntry).toHaveBeenCalledWith('docs/guide.md', 'file')
     fireEvent.click(screen.getByLabelText('docs 的更多操作'))
-    fireEvent.click(within(screen.getByRole('menu', { name: 'docs' })).getByRole('menuitem', { name: '使用默认应用打开' }))
+    fireEvent.click(within(screen.getByRole('menu', { name: 'docs' })).getByRole('menuitem', { name: '使用系统应用打开' }))
     expect(onOpenEntry).toHaveBeenCalledWith('docs', 'directory')
     expect(screen.getAllByText('M')).not.toHaveLength(0)
   })
diff --git a/src/renderer/src/i18n/locales/en-US/workspace.ts b/src/renderer/src/i18n/locales/en-US/workspace.ts
index d665880c..4e2e3547 100644
--- a/src/renderer/src/i18n/locales/en-US/workspace.ts
+++ b/src/renderer/src/i18n/locales/en-US/workspace.ts
@@ -39,7 +39,7 @@ export const workspace = {
     importFiles: 'Import files', importing: 'Importing…', importTarget: 'Destination: {{path}}', imported: 'Imported {{count}} files into {{path}}.', created: 'Created',
     gitWorkspace: 'Git Workspace', more: 'More actions for {{name}}', browse: 'Browse directory', parent: 'Parent directory',
     createFile: 'New file', createDirectory: 'New directory', rename: 'Rename', move: 'Move', delete: 'Delete', properties: 'Properties',
-    defaultOpen: 'Open with default application', name: 'Name', nameOnly: 'Name cannot contain path separators', destination: 'Destination directory',
+    defaultOpen: 'Open with system application', name: 'Name', nameOnly: 'Name cannot contain path separators', destination: 'Destination directory',
     chooseDirectory: 'Choose directory', moveHelp: 'Choose a directory inside the current workspace. The file or folder keeps its name.',
     destinationOutside: 'Choose a directory inside the current workspace: {{root}}. Moving outside this workspace is not supported.',
     destinationUnavailable: 'The project directory is unavailable. Reopen the workspace and try again.',
@@ -530,7 +530,7 @@ export const workspace = {
     },
     openFolderAriaLabel: 'Open folder {{name}} in the system file manager',
     openFolder: 'Open folder',
-    openFileAriaLabel: 'Open file {{name}} with the default app',
+    openFileAriaLabel: 'Open file {{name}} with the system app',
     openFile: 'Open file',
     reading: 'Reading…',
     directoryTruncated:
diff --git a/src/renderer/src/i18n/locales/zh-CN/workspace.ts b/src/renderer/src/i18n/locales/zh-CN/workspace.ts
index c5cfc819..6170710c 100644
--- a/src/renderer/src/i18n/locales/zh-CN/workspace.ts
+++ b/src/renderer/src/i18n/locales/zh-CN/workspace.ts
@@ -36,7 +36,7 @@ export const workspace = {
     importFiles: '导入文件', importing: '正在导入…', importTarget: '目标目录：{{path}}', imported: '已导入 {{count}} 个文件到 {{path}}。', created: '创建时间',
     gitWorkspace: 'Git 工作区', more: '{{name}} 的更多操作', browse: '浏览此目录', parent: '返回父目录',
     createFile: '新建文件', createDirectory: '新建目录', rename: '重命名', move: '移动', delete: '删除', properties: '属性',
-    defaultOpen: '使用默认应用打开', name: '名称', nameOnly: '名称不能包含路径分隔符', destination: '目标目录',
+    defaultOpen: '使用系统应用打开', name: '名称', nameOnly: '名称不能包含路径分隔符', destination: '目标目录',
     chooseDirectory: '选择目录', moveHelp: '请选择当前工作区内的目录，移动后保留文件或目录原名。',
     destinationOutside: '请选择当前工作区 {{root}} 内的目录，暂不支持移动到此工作区之外。',
     destinationUnavailable: '项目目录不可用，请重新打开工作区后重试。',
@@ -519,7 +519,7 @@ export const workspace = {
     },
     openFolderAriaLabel: '在系统资源管理器中打开文件夹 {{name}}',
     openFolder: '打开文件夹',
-    openFileAriaLabel: '使用默认应用打开文件 {{name}}',
+    openFileAriaLabel: '使用系统应用打开文件 {{name}}',
     openFile: '打开文件',
     reading: '正在读取…',
     directoryTruncated: '目录项目超过 500 项，仅显示前 500 项。',