diff --git a/api/app.py b/api/app.py
index 45337cb..0835879 100644
--- a/api/app.py
+++ b/api/app.py
@@ -35,6 +35,15 @@ oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
 
 app = FastAPI()
 
+# 初始化数据库表(使用IF NOT EXISTS语法，不会覆盖已有表)
+try:
+    from database import init_sqlite_db
+    init_sqlite_db()
+    logger.info("数据库表检查完成，缺失的表已创建")
+except Exception as e:
+    logger.error(f"数据库表初始化失败: {e}")
+    raise
+
 # 添加CORS中间件
 app.add_middleware(
     CORSMiddleware,