diff --git a/mindinsight/ui/src/views/train-manage/model-traceback.vue b/mindinsight/ui/src/views/train-manage/model-traceback.vue
index 7638ddc4..126d18d0 100644
--- a/mindinsight/ui/src/views/train-manage/model-traceback.vue
+++ b/mindinsight/ui/src/views/train-manage/model-traceback.vue
@@ -2865,7 +2865,7 @@ export default {
 }
 .select-inner-input {
   width: calc(100% - 130px);
-  min-width:70px;
+  min-width:78px;
   margin: 2px 4px;
   display: inline-block;
 }