diff --git a/src/views/enterpriseStandardLibrary/plan/PlanList.vue b/src/views/enterpriseStandardLibrary/plan/PlanList.vue
index 9cdd73b6..3ad81cf2 100644
--- a/src/views/enterpriseStandardLibrary/plan/PlanList.vue
+++ b/src/views/enterpriseStandardLibrary/plan/PlanList.vue
@@ -48,6 +48,7 @@
                   class="box-input"
                   style="width: 100%"
                   :tree-data="categoryTreeList"
+                  allowClear
                   :placeholder="$t('pleaseSelect') + $t('enterpriseStandardLibrary.plan.mainDraftingUnit')"
                 />
               </a-form-item>