diff --git a/src/components/line-app/infos/TrainInfo.vue b/src/components/line-app/infos/TrainInfo.vue
index 19b8bbe..f5e7dd7 100644
--- a/src/components/line-app/infos/TrainInfo.vue
+++ b/src/components/line-app/infos/TrainInfo.vue
@@ -57,6 +57,7 @@ const list: keyType[] = [
   { label: '尾车速传2速度值', key: 'tailSensorSpeed2', formatFn: speedFormat },
   { label: '头车雷达速度值', key: 'headRadarSpeed', formatFn: speedFormat },
   { label: '尾车雷达速度值', key: 'tailRadarSpeed', formatFn: speedFormat },
+  { label: '列车长度', key: 'trainLength', formatFn: trainLengthFormat },
 ];
 function upFormat(v: boolean) {
   return v ? '是' : '否';
@@ -68,10 +69,13 @@ function runningUpFormat(v: boolean) {
   return v ? '上行' : '下行';
 }
 function resistanceFormat(v: number) {
-  return `${v}KN`;
+  return `${v} KN`;
 }
 function speedFormat(v: number) {
-  return `${v}km/h`;
+  return `${v} km/h`;
+}
+function trainLengthFormat(v: number) {
+  return `${v} mm`;
 }
 watch(
   () => lineStore.selectedGraphics,
diff --git a/src/drawApp/graphics/TrainInteraction.ts b/src/drawApp/graphics/TrainInteraction.ts
index 1ff5d93..53d81e7 100644
--- a/src/drawApp/graphics/TrainInteraction.ts
+++ b/src/drawApp/graphics/TrainInteraction.ts
@@ -164,6 +164,18 @@ export class TrainState extends GraphicStateBase implements ITrainState {
   set tailRadarSpeed(v: number) {
     this.states.tailRadarSpeed = v;
   }
+  get trainLength(): number {
+    return this.states.trainLength;
+  }
+  set trainLength(v: number) {
+    this.states.trainLength = v;
+  }
+  get show(): boolean {
+    return this.states.show;
+  }
+  set show(v: boolean) {
+    this.states.show = v;
+  }
   clone(): TrainState {
     return new TrainState(this.states.cloneMessage());
   }
diff --git a/src/drawApp/lineApp.ts b/src/drawApp/lineApp.ts
index d63d89e..1f7a45d 100644
--- a/src/drawApp/lineApp.ts
+++ b/src/drawApp/lineApp.ts
@@ -339,7 +339,18 @@ export async function loadLineDatas(app: GraphicApp) {
           });
           storage.allStatus.trainState.forEach((item) => {
             // 列车
-            states.push(new TrainState(item));
+            if (!item.show) {
+              // 移除列车
+              const train = app.queryStore.queryByCodeAndType(
+                item.id,
+                Train.Type
+              );
+              if (train) {
+                app.deleteGraphics(train);
+              }
+            } else {
+              states.push(new TrainState(item));
+            }
           });
         } else {
           storage.varStatus.updatedSection.forEach((item) => {
diff --git a/src/graphics/train/Train.ts b/src/graphics/train/Train.ts
index 0800a4a..4c89c37 100644
--- a/src/graphics/train/Train.ts
+++ b/src/graphics/train/Train.ts
@@ -64,6 +64,10 @@ export interface ITrainState extends GraphicState {
   set headRadarSpeed(v: number);
   get tailRadarSpeed(): number;
   set tailRadarSpeed(v: number);
+  get trainLength(): number;
+  set trainLength(v: number);
+  get show(): boolean;
+  set show(v: boolean);
 }
 
 interface bodyWH {