diff --git a/src/plugins/nonebot_bison/config/db_config.py b/src/plugins/nonebot_bison/config/db_config.py
new file mode 100644
index 0000000..4843777
--- /dev/null
+++ b/src/plugins/nonebot_bison/config/db_config.py
@@ -0,0 +1,58 @@
+import json
+from typing import Optional
+
+from nonebot_bison.types import Category, Tag, Target
+from nonebot_plugin_datastore.db import create_session
+from sqlalchemy.sql.expression import select
+
+from .db_model import Subscribe as MSubscribe
+from .db_model import Target as MTarget
+from .db_model import User
+
+
+class DBConfig:
+    def __init__(self):
+        self.session = create_session()
+
+    async def add_subscribe(
+        self,
+        user: int,
+        user_type: str,
+        target: Target,
+        target_name: str,
+        platform_name: str,
+        cats: list[Category],
+        tags: list[Tag],
+    ):
+        db_user_stmt = (
+            select(User).where(User.uid == user).where(User.type == user_type)
+        )
+        db_user: Optional[User] = (await self.session.scalars(db_user_stmt)).first()
+        if not db_user:
+            db_user = User(uid=user, type=user_type)
+            self.session.add(db_user)
+        db_target_stmt = (
+            select(MTarget)
+            .where(MTarget.platform_name == platform_name)
+            .where(MTarget.target == target)
+        )
+        db_target: Optional[MTarget] = (
+            await self.session.scalars(db_target_stmt)
+        ).first()
+        if not db_target:
+            db_target = MTarget(
+                target=target, platform_name=platform_name, target_name=target_name
+            )
+        else:
+            db_target.target_name = target_name  # type: ignore
+        subscribe = MSubscribe(
+            categories=json.dumps(cats),
+            tags=json.dumps(tags),
+            user=db_user,
+            target=db_target,
+        )
+        self.session.add(subscribe)
+        await self.session.commit()
+
+
+config = DBConfig()
diff --git a/src/plugins/nonebot_bison/config/utils.py b/src/plugins/nonebot_bison/config/utils.py
new file mode 100644
index 0000000..1a8c19f
--- /dev/null
+++ b/src/plugins/nonebot_bison/config/utils.py
@@ -0,0 +1,6 @@
+class NoSuchUserException(Exception):
+    pass
+
+
+class NoSuchSubscribeException(Exception):
+    pass
diff --git a/tests/config/test_config_operation.py b/tests/config/test_config_operation.py
new file mode 100644
index 0000000..3c3bba5
--- /dev/null
+++ b/tests/config/test_config_operation.py
@@ -0,0 +1,17 @@
+from nonebug.app import App
+
+
+async def test_add_subscrib(app: App):
+
+    from nonebot_bison.config.db_config import config
+    from nonebot_bison.types import Target
+
+    await config.add_subscribe(
+        user=123,
+        user_type="group",
+        target=Target("weibo_id"),
+        target_name="weibo_name",
+        platform_name="weibo",
+        cats=[],
+        tags=[],
+    )