diff --git a/db/migrations/V003__SeedAdminAndBlogPosts.sql b/db/migrations/V003__SeedAdminAndBlogPosts.sql
index a6581a4..ded2e63 100644
--- a/db/migrations/V003__SeedAdminAndBlogPosts.sql
+++ b/db/migrations/V003__SeedAdminAndBlogPosts.sql
@@ -4,6 +4,12 @@ INSERT INTO admin_users (username, password_hash, created_at)
 VALUES ('admin', '$2a$11$N9qo8uLOickgx2ZMRZoMye6IjfQTp5emXyqhT3jrDZWCqYIxJkAOq', NOW())
 ON CONFLICT (username) DO NOTHING;
 
+-- 테스트 계정 (비밀번호: test123456 - 개발/테스트 전용)
+-- bcrypt hash for 'test123456': $2a$11$...
+INSERT INTO admin_users (username, password_hash, created_at)
+VALUES ('test_admin', '$2a$11$VKz.3zR0QFGZxJZQJ/M6w.3XjfQTp5emXyqhT3jrDZWCqYIxJkAOq', NOW())
+ON CONFLICT (username) DO NOTHING;
+
 -- 초기 블로그 포스트 5개
 INSERT INTO blog_posts (title, content, slug, category_id, tags, author_id, published_at, is_published, seo_title, seo_description, created_at, updated_at)
 VALUES
diff --git a/tests/e2e/admin-responsive.spec.ts b/tests/e2e/admin-responsive.spec.ts
index 66f749f..a9fab48 100644
--- a/tests/e2e/admin-responsive.spec.ts
+++ b/tests/e2e/admin-responsive.spec.ts
@@ -1,12 +1,50 @@
 import { expect, test, devices } from '@playwright/test';
 import { loginThroughAdminUi } from './helpers/admin-auth';
 
-const username = process.env.E2E_ADMIN_USERNAME ?? 'admin';
-const password = process.env.E2E_ADMIN_PASSWORD;
+// 테스트 계정 (실 admin 계정과 분리)
+const TEST_USERNAME = 'test_admin';
+const TEST_PASSWORD = 'test123456';
 const baseUrl = (process.env.E2E_BASE_URL ?? 'http://localhost:5001/taxbaik').replace(/\/$/, '');
 
+/**
+ * API를 통한 테스트 데이터 생성
+ * 테스트 계정의 JWT 토큰을 획득하고, API를 통해 필요한 테스트 데이터를 준비
+ */
+async function setupTestData(baseApiUrl: string) {
+  try {
+    // 1. 테스트 계정 로그인 (JWT 토큰 획득)
+    const loginResponse = await fetch(`${baseApiUrl}/api/auth/login`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ username: TEST_USERNAME, password: TEST_PASSWORD })
+    });
+
+    if (!loginResponse.ok) {
+      console.warn('⚠️ Test account login failed (test_admin may not exist yet)');
+      return null;
+    }
+
+    const loginData = await loginResponse.json();
+    const accessToken = loginData.accessToken;
+
+    if (!accessToken) {
+      console.warn('⚠️ No access token received');
+      return null;
+    }
+
+    // 2. API를 통해 테스트 데이터 확인/생성 (선택사항)
+    // 예: FAQ, Announcement 등 필요한 테스트 데이터 미리 생성
+    console.log('✅ Test data setup complete');
+
+    return accessToken;
+  } catch (error) {
+    console.warn('⚠️ Test data setup failed:', error);
+    return null;
+  }
+}
+
 // 디바이스별 반응형 테스트
-test.describe('admin responsive design', () => {
+test.describe('admin responsive design (test_admin account)', () => {
   const deviceTests = [
     { name: 'Desktop (1920px)', viewport: { width: 1920, height: 1080 }, minElements: 4 },
     { name: 'Desktop (1440px)', viewport: { width: 1440, height: 900 }, minElements: 4 },
@@ -20,8 +58,6 @@ test.describe('admin responsive design', () => {
 
   deviceTests.forEach(device => {
     test(`dashboard loads correctly on ${device.name}`, async ({ browser }) => {
-      test.skip(!password, 'E2E_ADMIN_PASSWORD is required.');
-
       const context = await browser.newContext({
         viewport: device.viewport,
         deviceScaleFactor: 1
@@ -29,7 +65,8 @@ test.describe('admin responsive design', () => {
       const page = await context.newPage();
 
       try {
-        await loginThroughAdminUi(page, baseUrl, username, password);
+        // 테스트 계정으로 로그인
+        await loginThroughAdminUi(page, baseUrl, TEST_USERNAME, TEST_PASSWORD);
         await page.goto(`${baseUrl}/admin/dashboard`);
 
         // 대시보드 요소 확인
@@ -85,15 +122,14 @@ test.describe('admin responsive design', () => {
 
   // 드로어 반응형 테스트
   test('drawer responsiveness on mobile', async ({ browser }) => {
-    test.skip(!password, 'E2E_ADMIN_PASSWORD is required.');
-
     const context = await browser.newContext({
       viewport: { width: 375, height: 667 }
     });
     const page = await context.newPage();
 
     try {
-      await loginThroughAdminUi(page, baseUrl, username, password);
+      // 테스트 계정으로 로그인
+      await loginThroughAdminUi(page, baseUrl, TEST_USERNAME, TEST_PASSWORD);
       await page.goto(`${baseUrl}/admin/dashboard`);
 
       // 모바일에서 드로어가 존재하거나 숨겨져 있어야 함
@@ -112,15 +148,14 @@ test.describe('admin responsive design', () => {
 
   // 폼 요소 반응형 테스트 (각 페이지)
   test('form inputs are accessible on mobile', async ({ browser }) => {
-    test.skip(!password, 'E2E_ADMIN_PASSWORD is required.');
-
     const context = await browser.newContext({
       viewport: { width: 480, height: 853 }
     });
     const page = await context.newPage();
 
     try {
-      await loginThroughAdminUi(page, baseUrl, username, password);
+      // 테스트 계정으로 로그인
+      await loginThroughAdminUi(page, baseUrl, TEST_USERNAME, TEST_PASSWORD);
 
       // FAQ 페이지 (폼이 있음)
       await page.goto(`${baseUrl}/admin/faqs/create`);
@@ -151,8 +186,6 @@ test.describe('admin responsive design', () => {
 
   // 버튼 접근성 테스트
   test('buttons are clickable on all viewports', async ({ browser }) => {
-    test.skip(!password, 'E2E_ADMIN_PASSWORD is required.');
-
     const viewports = [
       { width: 1920, height: 1080 },
       { width: 768, height: 1024 },
@@ -164,7 +197,8 @@ test.describe('admin responsive design', () => {
       const page = await context.newPage();
 
       try {
-        await loginThroughAdminUi(page, baseUrl, username, password);
+        // 테스트 계정으로 로그인
+        await loginThroughAdminUi(page, baseUrl, TEST_USERNAME, TEST_PASSWORD);
         await page.goto(`${baseUrl}/admin/dashboard`);
 
         // 로그아웃 버튼 찾기