diff --git a/backend/app/admin/tests/conftest.py b/backend/conftest.py
similarity index 79%
rename from backend/app/admin/tests/conftest.py
rename to backend/conftest.py
index bdeb2105..5f0297ec 100644
--- a/backend/app/admin/tests/conftest.py
+++ b/backend/conftest.py
@@ -4,13 +4,14 @@ import pytest
 
 from starlette.testclient import TestClient
 
-from backend.app.admin.tests.utils.db import override_get_db
 from backend.core.conf import settings
-from backend.database.db import get_db
+from backend.database.db import get_db, get_db_transaction
 from backend.main import app
+from backend.tests.utils.db import override_get_db, override_get_db_transaction
 
 # 重载数据库
 app.dependency_overrides[get_db] = override_get_db
+app.dependency_overrides[get_db_transaction] = override_get_db_transaction
 
 
 # Test data
@@ -19,7 +20,7 @@ PYTEST_PASSWORD = '123456'
 PYTEST_BASE_URL = f'http://testserver{settings.FASTAPI_API_V1_PATH}'
 
 
-@pytest.fixture(scope='module')
+@pytest.fixture(scope='session')
 def client() -> Generator:
     with TestClient(app, base_url=PYTEST_BASE_URL) as c:
         yield c
diff --git a/backend/tests/__init__.py b/backend/tests/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/backend/tests/utils/__init__.py b/backend/tests/utils/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/backend/app/admin/tests/utils/db.py b/backend/tests/utils/db.py
similarity index 77%
rename from backend/app/admin/tests/utils/db.py
rename to backend/tests/utils/db.py
index 453634b3..4fa7158c 100644
--- a/backend/app/admin/tests/utils/db.py
+++ b/backend/tests/utils/db.py
@@ -16,3 +16,9 @@ async def override_get_db() -> AsyncGenerator[AsyncSession, None]:
     """获取数据库会话"""
     async with async_test_db_session() as session:
         yield session
+
+
+async def override_get_db_transaction() -> AsyncGenerator[AsyncSession, None]:
+    """获取数据库会话"""
+    async with async_test_db_session.begin() as session:
+        yield session