diff --git a/tests/backend/trash.test.js b/tests/backend/trash.test.js
new file mode 100644
index 0000000..5694709
--- /dev/null
+++ b/tests/backend/trash.test.js
@@ -0,0 +1,55 @@
+// 回收站 API 测试
+const request = require('supertest');
+const app = require('../../backend/src/index');
+
+describe('Trash API', () => {
+  let token;
+
+  beforeAll(async () => {
+    const loginRes = await request(app)
+      .post('/api/auth/login')
+      .send({ username: 'testuser', password: 'test123' });
+    token = loginRes.body.token;
+  });
+
+  describe('GET /api/trash', () => {
+    it('should get trashed files', async () => {
+      const response = await request(app)
+        .get('/api/trash')
+        .set('Authorization', `Bearer ${token}`);
+      
+      expect(response.status).toBe(200);
+      expect(response.body).toHaveProperty('files');
+    });
+  });
+
+  describe('POST /api/trash/:id/restore', () => {
+    it('should restore file', async () => {
+      const response = await request(app)
+        .post('/api/trash/1/restore')
+        .set('Authorization', `Bearer ${token}`);
+      
+      expect(response.status).toBe(200);
+    });
+  });
+
+  describe('DELETE /api/trash/:id', () => {
+    it('should permanently delete file', async () => {
+      const response = await request(app)
+        .delete('/api/trash/1')
+        .set('Authorization', `Bearer ${token}`);
+      
+      expect(response.status).toBe(200);
+    });
+  });
+
+  describe('POST /api/trash/empty', () => {
+    it('should empty trash', async () => {
+      const response = await request(app)
+        .post('/api/trash/empty')
+        .set('Authorization', `Bearer ${token}`);
+      
+      expect(response.status).toBe(200);
+    });
+  });
+});