diff --git a/packages/components/tooltip/__tests__/tooltip-lite.test.tsx b/packages/components/tooltip/__tests__/tooltip-lite.test.tsx
new file mode 100644
index 0000000000..84b82d7703
--- /dev/null
+++ b/packages/components/tooltip/__tests__/tooltip-lite.test.tsx
@@ -0,0 +1,105 @@
+import React from 'react';
+import { act, fireEvent, render } from '@test/utils';
+
+import TooltipLite from '../TooltipLite';
+
+describe('TooltipLite 组件测试', () => {
+  const triggerText = '触发元素';
+  const contentText = '气泡提示内容';
+
+  test('基础 hover 触发与内容渲染', async () => {
+    const { getByText, queryByText } = render(
+      <TooltipLite content={contentText}>
+        <button>{triggerText}</button>
+      </TooltipLite>,
+    );
+
+    // 初始状态下内容不存在
+    expect(queryByText(contentText)).toBeNull();
+
+    // 模拟鼠标进入
+    await act(async () => {
+      fireEvent.mouseEnter(getByText(triggerText));
+    });
+
+    // 鼠标进入后内容出现
+    const tipContent = queryByText(contentText);
+    expect(tipContent).not.toBeNull();
+    expect(tipContent.closest('.t-tooltip')).toHaveClass('t-popup');
+
+    // 模拟鼠标离开
+    await act(async () => {
+      fireEvent.mouseLeave(getByText(triggerText));
+    });
+  });
+
+  test('triggerElement prop 支持', async () => {
+    const { getByText, queryByText } = render(
+      <TooltipLite triggerElement={<span>{triggerText}</span>} content={contentText} />,
+    );
+
+    await act(async () => {
+      fireEvent.mouseEnter(getByText(triggerText));
+    });
+
+    expect(queryByText(contentText)).not.toBeNull();
+  });
+
+  test('theme 与 showShadow 支持', async () => {
+    const { getByText, queryByText, rerender } = render(
+      <TooltipLite theme="light" showShadow={false} content={contentText}>
+        <span>{triggerText}</span>
+      </TooltipLite>,
+    );
+
+    await act(async () => {
+      fireEvent.mouseEnter(getByText(triggerText));
+    });
+
+    const popupNode = queryByText(contentText)?.closest('.t-tooltip');
+    expect(popupNode).toHaveClass('t-tooltip--light');
+    expect(popupNode).toHaveClass('t-tooltip--noshadow');
+
+    // 切回 default 主题且显示阴影
+    rerender(
+      <TooltipLite theme="default" showShadow={true} content={contentText}>
+        <span>{triggerText}</span>
+      </TooltipLite>,
+    );
+    expect(popupNode).toHaveClass('t-tooltip--default');
+    expect(popupNode).not.toHaveClass('t-tooltip--noshadow');
+  });
+
+  test('showArrow 支持', async () => {
+    const { getByText } = render(
+      <TooltipLite showArrow={true} placement="top" content={contentText}>
+        <span>{triggerText}</span>
+      </TooltipLite>,
+    );
+
+    await act(async () => {
+      fireEvent.mouseEnter(getByText(triggerText));
+    });
+
+    expect(document.querySelector('.t-popup__arrow')).not.toBeNull();
+  });
+
+  test('placement: mouse 跟随定位支持', async () => {
+    const { getByText, queryByText } = render(
+      <TooltipLite placement="mouse" content={contentText}>
+        <span>{triggerText}</span>
+      </TooltipLite>,
+    );
+
+    const triggerNode = getByText(triggerText);
+
+    await act(async () => {
+      fireEvent.mouseMove(triggerNode, { clientX: 100, clientY: 100 });
+      fireEvent.mouseEnter(triggerNode, { clientX: 100, clientY: 100 });
+    });
+
+    const popupNode = queryByText(contentText)?.closest('.t-tooltip') as HTMLElement;
+    expect(popupNode).not.toBeNull();
+    expect(popupNode.dataset.popperPlacement).toEqual('mouse');
+  });
+});