diff --git a/app/model/UserModel.py b/app/model/UserModel.py
index 3c83200..613fcb9 100644
--- a/app/model/UserModel.py
+++ b/app/model/UserModel.py
@@ -1,8 +1,12 @@
 from enum import Enum
+from typing import Optional
 
-from sqlmodel import Field
+from pydantic import computed_field
+from sqlalchemy.orm import selectinload
+from sqlmodel import Field, Relationship, select
 
 from app.model.BasicModel import BasicModel
+from app.model.PosModel import PosModel
 from app.utils.create_module_service import create_model_service
 
 
@@ -35,5 +39,33 @@ class UserServiceModel(PublicUser, table=True):
   __tablename__ = "pl_user"
   __table_args__ = {'extend_existing': True}
 
+  pos_code: str = Field(
+    default=None,
+    description="用户职位编码",
+    foreign_key="pl_pos.code",  # 添加外键约束
+    nullable=True
+  )
 
-UserService = create_model_service(UserServiceModel)
+  position: Optional["PosModel"] = Relationship(
+    sa_relationship_kwargs={
+      "foreign_keys": "UserServiceModel.pos_code",
+      "remote_side": "PosModel.code",
+      "uselist": False
+    }
+  )
+
+  @computed_field
+  @property
+  def pos_name(self) -> Optional[str]:
+    return self.position.name if self.position else None
+
+  @pos_name.setter
+  def pos_name(self, value: Optional[str]) -> None:
+    pass
+
+
+UserService = create_model_service(
+  Cls=UserServiceModel,
+  custom_query=(lambda: select(UserServiceModel)
+                .options(selectinload(UserServiceModel.position)))
+)