diff --git a/app/core/config.py b/app/core/config.py
index 51c55455..fa1f11a2 100644
--- a/app/core/config.py
+++ b/app/core/config.py
@@ -101,8 +101,10 @@ class ConfigModel(BaseModel):
     DB_TYPE: str = "sqlite"
     # 是否在控制台输出 SQL 语句，默认关闭
     DB_ECHO: bool = False
-    # SQLite 的 busy_timeout 参数，默认为 60 秒
+    # 数据库连接超时时间（秒），默认为 60 秒
     DB_TIMEOUT: int = 60
+    # 是否启用 WAL 模式，仅适用于SQLite，默认开启
+    DB_WAL_ENABLE: bool = True
     # 数据库连接池类型，QueuePool, NullPool
     DB_POOL_TYPE: str = "QueuePool"
     # 是否在获取连接时进行预先 ping 操作
@@ -112,11 +114,9 @@ class ConfigModel(BaseModel):
     # 数据库连接池获取连接的超时时间（秒）
     DB_POOL_TIMEOUT: int = 30
     # SQLite 连接池大小
-    DB_POOL_SIZE: int = 30
+    DB_SQLITE_POOL_SIZE: int = 30
     # SQLite 连接池溢出数量
-    DB_MAX_OVERFLOW: int = 50
-    # SQLite 是否启用 WAL 模式，默认开启
-    DB_WAL_ENABLE: bool = True
+    DB_SQLITE_MAX_OVERFLOW: int = 50
     # PostgreSQL 主机地址
     DB_POSTGRESQL_HOST: str = "localhost"
     # PostgreSQL 端口
diff --git a/app/db/__init__.py b/app/db/__init__.py
index c153fac5..d200c2ab 100644
--- a/app/db/__init__.py
+++ b/app/db/__init__.py
@@ -64,9 +64,9 @@ def _get_sqlite_engine(is_async: bool = False):
         # 当使用 QueuePool 时，添加 QueuePool 特有的参数
         if _pool_class == QueuePool:
             _db_kwargs.update({
-                "pool_size": settings.DB_POOL_SIZE,
+                "pool_size": settings.DB_SQLITE_POOL_SIZE,
                 "pool_timeout": settings.DB_POOL_TIMEOUT,
-                "max_overflow": settings.DB_MAX_OVERFLOW
+                "max_overflow": settings.DB_SQLITE_MAX_OVERFLOW
             })
 
         # 创建数据库引擎
@@ -122,6 +122,12 @@ def _get_postgresql_engine(is_async: bool = False):
     else:
         db_url = f"postgresql://{settings.DB_POSTGRESQL_USERNAME}@{settings.DB_POSTGRESQL_HOST}:{settings.DB_POSTGRESQL_PORT}/{settings.DB_POSTGRESQL_DATABASE}"
 
+    # PostgreSQL连接参数
+    _connect_args = {
+        "connect_timeout": settings.DB_TIMEOUT,
+        "command_timeout": settings.DB_TIMEOUT,
+    }
+
     # 创建同步引擎
     if not is_async:
         # 根据池类型设置 poolclass 和相关参数
@@ -134,6 +140,7 @@ def _get_postgresql_engine(is_async: bool = False):
             "echo": settings.DB_ECHO,
             "poolclass": _pool_class,
             "pool_recycle": settings.DB_POOL_RECYCLE,
+            "connect_args": _connect_args
         }
 
         # 当使用 QueuePool 时，添加 QueuePool 特有的参数
@@ -160,6 +167,7 @@ def _get_postgresql_engine(is_async: bool = False):
             "echo": settings.DB_ECHO,
             "poolclass": NullPool,
             "pool_recycle": settings.DB_POOL_RECYCLE,
+            "connect_args": _connect_args
         }
         # 创建异步数据库引擎
         async_engine = create_async_engine(**_db_kwargs)