diff --git a/app/controller/add_approve_route.py b/app/controller/add_approve_route.py
index 92aebf7..2a2a5ab 100644
--- a/app/controller/add_approve_route.py
+++ b/app/controller/add_approve_route.py
@@ -8,6 +8,7 @@ from app.model.ProjectModel import ProjectModel, ProjectService
 from app.model.ReimburseModel import ReimburseService
 from app.utils.db_utils import AsyncSessionDep
 
+
 def add_approve_route(app: FastAPI):
   # 提交报销单接口
   @app.post('/submit_reimburse')
@@ -31,6 +32,9 @@ def add_approve_route(app: FastAPI):
     project_cls_list = (await session.execute(ProjectService.select_cls().where(ProjectModel.id.in_(proj_id_list)))).scalars().all()
     project_dict_list = [item.model_dump() for item in project_cls_list]
     for dict_item in project_dict_list:
+      # 已花费金额
       dict_item['spent'] = result[dict_item['id']]
+      # 剩余金额
+      dict_item['balance'] = Decimal(dict_item['budget']) - Decimal(dict_item['spent'])
 
     return project_dict_list