diff --git a/mindinsight/ui/src/views/train-manage/step-trace.vue b/mindinsight/ui/src/views/train-manage/step-trace.vue
index 62407d443bbdae200fd7c0465c3c8f87b35504d6..7869d3259cd4e07b1ab6ebc1655d3b199bf0bf87 100644
--- a/mindinsight/ui/src/views/train-manage/step-trace.vue
+++ b/mindinsight/ui/src/views/train-manage/step-trace.vue
@@ -272,6 +272,7 @@ export default {
                     type: 'category',
                     data: this.steps.map((val, index) => index + 1),
                     name: 'step',
+                    max: this.steps.length,
                   },
                   yAxis: {
                     type: 'value',