diff --git a/app/api/comprehensive_data.py b/app/api/comprehensive_data.py
index d336e87..77df9e6 100644
--- a/app/api/comprehensive_data.py
+++ b/app/api/comprehensive_data.py
@@ -404,7 +404,7 @@ def get_today_data(db: Session = Depends(get_db)):
             total=0,
             data={}
         )
-# 查询断面数据对应观察点数据
+# account_id获取所有断面数据
 @router.post("/get_all_section_by_account", response_model=DataResponse)
 def get_all_section_by_account(request: SectionByAccountRequest, db: Session = Depends(get_db)):
     """获取断面数据 + 观测点"""
@@ -419,6 +419,29 @@ def get_all_section_by_account(request: SectionByAccountRequest, db: Session = D
             total=len(data_list),
             data=data_list
         )
+    except Exception as e:
+        logger.error(f"Query section data failed: {str(e)}")
+        return DataResponse(
+            code=ResponseCode.QUERY_FAILED,
+            message=f"{ResponseMessage.QUERY_FAILED}: {str(e)}",
+            total=0,
+            data=[]
+        )
+# section_id 获取所有观测点数据
+@router.post("/get_all_checkpoint_by_section", response_model=DataResponse)
+def get_all_checkpoint_by_section(request: SectionByAccountRequest, db: Session = Depends(get_db)):
+    """获取断面数据 + 观测点"""
+    try:
+        section_id = request.section_id
+        checkpoint_service = CheckpointService()
+        result_data = checkpoint_service.get_by_section_id(db, section_id=section_id)
+        data_list = [item.to_dict() for item in result_data] if result_data else []
+        return DataResponse(
+            code=ResponseCode.SUCCESS,
+            message="查询成功",
+            total=len(data_list),
+            data=data_list
+        )
     except Exception as e:
         logger.error(f"Query section data failed: {str(e)}")
         return DataResponse(
diff --git a/app/schemas/comprehensive_data.py b/app/schemas/comprehensive_data.py
index 03f8755..083f68c 100644
--- a/app/schemas/comprehensive_data.py
+++ b/app/schemas/comprehensive_data.py
@@ -152,6 +152,7 @@ class SectionDataQueryRequest(BaseModel):
 # 断面数据导入请求
 class SectionByAccountRequest(BaseModel):
     account_id: Optional[str] = None
+    section_id: Optional[str] = None
 
 # 水准数据查询请求
 class LevelDataQueryRequest(BaseModel):
diff --git a/app/services/checkpoint.py b/app/services/checkpoint.py
index 5d1250a..d9542b1 100644
--- a/app/services/checkpoint.py
+++ b/app/services/checkpoint.py
@@ -8,9 +8,7 @@ class CheckpointService(BaseService[Checkpoint]):
     def __init__(self):
         super().__init__(Checkpoint)
 
-    def get_by_section_id(self, db: Session, section_id: str) -> List[Checkpoint]:
-        """根据断面ID获取观测点"""
-        return self.get_by_field(db, "section_id", section_id)
+
 
     def get_by_point_id(self, db: Session, point_id: str) -> Optional[Checkpoint]:
         """根据观测点ID获取观测点"""
@@ -121,4 +119,8 @@ class CheckpointService(BaseService[Checkpoint]):
         }
     def get_by_nyid(self, db: Session, nyid: str) -> List[Checkpoint]:
         """根据NYID获取所有相关的测点信息"""
-        return self.get_by_field(db, "NYID", nyid)
\ No newline at end of file
+        return self.get_by_field(db, "NYID", nyid)
+    # 通过section_id获取所有观测点数据
+    def get_by_section_id(self, db: Session, section_id: str) -> List[Checkpoint]:
+        """根据section_id获取所有相关的测点信息"""
+        return self.get_by_field(db, "section_id", section_id)