diff --git a/app/models/checkpoint.py b/app/models/checkpoint.py
index 2f46492..1ba5669 100644
--- a/app/models/checkpoint.py
+++ b/app/models/checkpoint.py
@@ -7,6 +7,5 @@ class Checkpoint(Base):
     id = Column(Integer, primary_key=True, index=True, autoincrement=True)
     aname = Column(String(100), nullable=False, comment="观察点名称")
     burial_date = Column(String(100), comment="埋设日期")
-    linecode = Column(String(100), comment="线路编码")
     section_id = Column(String(100), nullable=False, comment="所属断面id")
     point_id = Column(String(100), nullable=False, comment="观察点id")
\ No newline at end of file
diff --git a/app/services/checkpoint.py b/app/services/checkpoint.py
index 548fdea..64ff8a6 100644
--- a/app/services/checkpoint.py
+++ b/app/services/checkpoint.py
@@ -71,7 +71,6 @@ class CheckpointService(BaseService[Checkpoint]):
                             checkpoint.aname = item_data.get('aname')
                             checkpoint.section_id = item_data.get('section_id')
                             checkpoint.burial_date = item_data.get('burial_date')
-                            checkpoint.linecode = item_data.get('linecode')
                             logger.info(f"Updated checkpoint: {item_data.get('point_id')}")
                         else:
                             # 新增操作
@@ -80,7 +79,6 @@ class CheckpointService(BaseService[Checkpoint]):
                                 aname=item_data.get('aname'),
                                 section_id=item_data.get('section_id'),
                                 burial_date=item_data.get('burial_date'),
-                                linecode=item_data.get('linecode')
                             )
                             db.add(checkpoint)
                             logger.info(f"Created checkpoint: {item_data.get('point_id')}")
diff --git a/app/services/section_data.py b/app/services/section_data.py
index 8ba19be..835a4f2 100644
--- a/app/services/section_data.py
+++ b/app/services/section_data.py
@@ -87,8 +87,7 @@ class SectionDataService(BaseService[SectionData]):
                         "point_id": cp.point_id,
                         "aname": cp.aname,
                         "burial_date": cp.burial_date,
-                        "section_id": cp.section_id,
-                        "linecode": cp.linecode
+                        "section_id": cp.section_id
                     } for cp in checkpoints
                 ]
             }