diff --git a/src/views/em/equipment_form.vue b/src/views/em/equipment_form.vue
index d805ecdb..56a4e673 100644
--- a/src/views/em/equipment_form.vue
+++ b/src/views/em/equipment_form.vue
@@ -37,6 +37,7 @@
 									v-model="form.indicate_mgroup_running"
 									style="width: 100%"
                   clearable
+                  @clear="() => { form.indicate_mgroup_running=null } "
 								>
 									<el-option
 										v-for="e in iMEnum.values"