diff --git a/src/iscs_graphic_data.proto b/src/iscs_graphic_data.proto
index 6683475..5361dfe 100644
--- a/src/iscs_graphic_data.proto
+++ b/src/iscs_graphic_data.proto
@@ -4,6 +4,7 @@ package iscsGraphicData;
 message IscsGraphicStorage {
   Canvas canvas = 1;
   UniqueIdOfStationLayout UniqueIdPrefix = 2;//地图唯一信息
+  repeated Arrow arrows = 3;
 }
 
 message Canvas {
@@ -66,3 +67,9 @@ message UniqueIdOfStationLayout {
   string lineId = 2;//线路号
   string mainCoordinateSystem = 3;//地图的公里标主坐标系
 }
+
+message Arrow {
+  CommonInfo common = 1;
+  string code = 2;
+  repeated Point points = 3;
+}