diff --git a/src/views/mes/baseStructureBom/index.vue b/src/views/mes/baseStructureBom/index.vue
index 42a6354..c86dd58 100644
--- a/src/views/mes/baseStructureBom/index.vue
+++ b/src/views/mes/baseStructureBom/index.vue
@@ -142,7 +142,7 @@
               :key="item.matrialTypeId"
               :label="item.matrialTypeName"
               :value="item.matrialTypeId"
-              :disabled="item.activeFlag == '0'"
+              :disabled="item.activeFlag == '0' || item.matrialTypeId === form.parentId"
             ></el-option>
           </el-select>
         </el-form-item>