diff --git a/src/jmapNew/theme/components/menus/dialog/trainOperation.vue b/src/jmapNew/theme/components/menus/dialog/trainOperation.vue
index a9519773e..317e3ce5e 100644
--- a/src/jmapNew/theme/components/menus/dialog/trainOperation.vue
+++ b/src/jmapNew/theme/components/menus/dialog/trainOperation.vue
@@ -25,13 +25,13 @@
     </el-row>
     <el-row style="margin-top: 40px">
       <el-col :span="3" :offset="7" style="text-align: right;">
-        <el-button :type="right?'':'primary'" size="mini" icon="el-icon-arrow-left" @click="adjustDirection('left')" />
+        <el-button :disabled="!showRight" type="primary" size="mini" icon="el-icon-arrow-left" @click="adjustDirection" />
       </el-col>
       <el-col :span="3" style="text-align: center;">
         <img style="width: 50px" :src="trainPic">
       </el-col>
       <el-col :span="3">
-        <el-button :type="right?'primary':''" size="mini" icon="el-icon-arrow-right" @click="adjustDirection('right')" />
+        <el-button :disabled="showRight" type="primary" size="mini" icon="el-icon-arrow-right" @click="adjustDirection" />
       </el-col>
     </el-row>
   </el-dialog>
@@ -70,6 +70,9 @@ export default {
         };
     },
     computed: {
+        showRight() {
+            return (this.right && !this.reversal) || (!this.right && this.reversal);
+        },
         trainPic() {
             if ((this.right && this.reversal) || (!this.right && !this.reversal)) {
                 return this.leftTrainPic;
@@ -107,9 +110,9 @@ export default {
             sandTableTrainControl(this.$route.query.group, { groupNumber: this.groupNumber, right: this.right, speed: this.speed }).then(resp => {
             }).catch(err => { this.$message.error(err.message); this.speed = this.train.speed; }).finally(() => { this.changeSpeedFlag = false; });
         },
-        adjustDirection(value) {
-            sandTableTrainControl(this.$route.query.group, { groupNumber: this.groupNumber, right: value === 'right', speed: this.speed }).then(resp => {
-                this.right = value === 'right';
+        adjustDirection() {
+            sandTableTrainControl(this.$route.query.group, { groupNumber: this.groupNumber, right: !this.right, speed: this.speed }).then(resp => {
+                this.right = !this.right;
             }).catch(err => { this.$message.error(err.message); });
         },
         brakeTrain() {