diff --git a/src/main/java/com/jsh/erp/service/materialCategory/MaterialCategoryService.java b/src/main/java/com/jsh/erp/service/materialCategory/MaterialCategoryService.java
index a814af25..1b0d0905 100644
--- a/src/main/java/com/jsh/erp/service/materialCategory/MaterialCategoryService.java
+++ b/src/main/java/com/jsh/erp/service/materialCategory/MaterialCategoryService.java
@@ -31,7 +31,7 @@ public class MaterialCategoryService {
 
     public List<MaterialCategory> getAllList(Long parentId) {
         MaterialCategoryExample example = new MaterialCategoryExample();
-        example.createCriteria().andParentidEqualTo(parentId);
+        example.createCriteria().andParentidEqualTo(parentId).andIdNotEqualTo(1l);
         example.setOrderByClause("id");
         return materialCategoryMapper.selectByExample(example);
     }
diff --git a/src/main/resources/mapper_xml/MaterialCategoryMapperEx.xml b/src/main/resources/mapper_xml/MaterialCategoryMapperEx.xml
index 9ad69e85..bf7e356d 100644
--- a/src/main/resources/mapper_xml/MaterialCategoryMapperEx.xml
+++ b/src/main/resources/mapper_xml/MaterialCategoryMapperEx.xml
@@ -11,6 +11,7 @@
         <if test="parentId != null">
             and parentId = ${parentId}
         </if>
+        and Id !=1
         <if test="offset != null and rows != null">
             limit #{offset},#{rows}
         </if>
@@ -26,5 +27,6 @@
         <if test="parentId != null">
             and parentId = ${parentId}
         </if>
+        and Id !=1
     </select>
 </mapper>
\ No newline at end of file