diff --git a/src/views/newMap/display/trainingList/trainingLeftSlider.vue b/src/views/newMap/display/trainingList/trainingLeftSlider.vue
index 1b20ddced..75e5649e4 100644
--- a/src/views/newMap/display/trainingList/trainingLeftSlider.vue
+++ b/src/views/newMap/display/trainingList/trainingLeftSlider.vue
@@ -58,9 +58,10 @@ export default {
     },
     methods: {
         initLoadPage() {
-            const trainingType = this.$store.state.training.domConfig ? this.$store.state.training.domConfig.trainingType : '';
+            let trainingType = this.$store.state.training.domConfig ? this.$store.state.training.domConfig.trainingType : '';
+			trainingType = trainingType ? trainingType.toLowerCase() : null;
             // labels: ['车站', '控制权']
-            const data = {mapId: this.mapId, type: trainingType.toLowerCase()};
+            const data = {mapId: this.mapId, type: trainingType};
             if (this.$route.query.labels) {
                 const labels = this.$route.query.labels.split('-');
                 const labelMap = { loc: '现地', dis: '行调', section: '区段', signal: '信号机', switch: '道岔', stand: '站台', station: '车站', control: '控制权' };