diff --git a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/controller/admin/matcode/vo/MatCodePageReqVO.java b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/controller/admin/matcode/vo/MatCodePageReqVO.java
index 5ada3c60..79a3d6b6 100644
--- a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/controller/admin/matcode/vo/MatCodePageReqVO.java
+++ b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/controller/admin/matcode/vo/MatCodePageReqVO.java
@@ -14,9 +14,6 @@ import static com.chanko.yunxi.mes.framework.common.util.date.DateUtils.FORMAT_Y
 @ToString(callSuper = true)
 public class MatCodePageReqVO extends PageParam {
 
-    @Schema(description = "物料大类编码")
-    private String matCatCode;
-
     @Schema(description = "物料物料大类名称", example = "芋艿")
     private String matCatName;
 
diff --git a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/controller/admin/matcode/vo/MatCodeSaveReqVO.java b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/controller/admin/matcode/vo/MatCodeSaveReqVO.java
index d586363d..2eb41cdc 100644
--- a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/controller/admin/matcode/vo/MatCodeSaveReqVO.java
+++ b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/controller/admin/matcode/vo/MatCodeSaveReqVO.java
@@ -13,10 +13,6 @@ public class MatCodeSaveReqVO {
     @Schema(description = "自增字段，唯一", requiredMode = Schema.RequiredMode.REQUIRED, example = "20351")
     private Long id;
 
-    @Schema(description = "物料大类编码", requiredMode = Schema.RequiredMode.REQUIRED)
-//    @NotEmpty(message = "物料大类编码不能为空")
-    private String matCatCode;
-
     @Schema(description = "物料大类名称", requiredMode = Schema.RequiredMode.REQUIRED, example = "刚材")
 //    @NotEmpty(message = "大类名称不能为空")
     private String matCatName;
diff --git a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/dal/dataobject/matcode/MatCodeDO.java b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/dal/dataobject/matcode/MatCodeDO.java
index 6f237968..0252038f 100644
--- a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/dal/dataobject/matcode/MatCodeDO.java
+++ b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/dal/dataobject/matcode/MatCodeDO.java
@@ -24,10 +24,6 @@ public class MatCodeDO extends BaseDO {
      */
     @TableId
     private Long id;
-    /**
-     * 物料大类编码
-     */
-    private String matCatCode;
     /**
      * 物料物料大类名称
      */
diff --git a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/dal/mysql/matcode/MatCodeMapper.java b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/dal/mysql/matcode/MatCodeMapper.java
index 7de8cc78..9992225d 100644
--- a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/dal/mysql/matcode/MatCodeMapper.java
+++ b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/dal/mysql/matcode/MatCodeMapper.java
@@ -19,7 +19,7 @@ public interface MatCodeMapper extends BaseMapperX<MatCodeDO> {
 
     default PageResult<MatCodeDO> selectPage(MatCodePageReqVO reqVO) {
         return selectPage(reqVO, new LambdaQueryWrapperX<MatCodeDO>()
-                .eqIfPresent(MatCodeDO::getMatCatCode, reqVO.getMatCatCode())
+                .eqIfPresent(MatCodeDO::getMatTypeCode, reqVO.getMatTypeCode())
                 .likeIfPresent(MatCodeDO::getMatCatName, reqVO.getMatCatName())
                 .eqIfPresent(MatCodeDO::getMatTypeCode, reqVO.getMatTypeCode())
                 .eqIfPresent(MatCodeDO::getCurMaxSeq, reqVO.getCurMaxSeq())
@@ -30,12 +30,12 @@ public interface MatCodeMapper extends BaseMapperX<MatCodeDO> {
 
     default MatCodeDO selectByMatCatCode(String matCatCode) {
         return selectOne(new LambdaQueryWrapperX<MatCodeDO>()
-                .eq(MatCodeDO::getMatCatCode, matCatCode));
+                .eq(MatCodeDO::getMatTypeCode, matCatCode));
     }
 
     default MatCodeDO selectByMatCatCodeAndIdNot(String matCatCode, Long id) {
         return selectOne(new LambdaQueryWrapperX<MatCodeDO>()
-                .eq(MatCodeDO::getMatCatCode, matCatCode)
+                .eq(MatCodeDO::getMatTypeCode, matCatCode)
                 .ne(MatCodeDO::getId, id));
     }
 
diff --git a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/matcode/MatCodeService.java b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/matcode/MatCodeService.java
index a787f754..97d1819c 100644
--- a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/matcode/MatCodeService.java
+++ b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/matcode/MatCodeService.java
@@ -30,6 +30,9 @@ public interface MatCodeService {
      */
     void updateMatCode(@Valid MatCodeSaveReqVO updateReqVO);
 
+
+    void updateCurMaxSeq(String matTypeCode);
+
     /**
      * 删除物料大类编码维护
      *
diff --git a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/matcode/MatCodeServiceImpl.java b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/matcode/MatCodeServiceImpl.java
index 9deb7d65..21a45e23 100644
--- a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/matcode/MatCodeServiceImpl.java
+++ b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/matcode/MatCodeServiceImpl.java
@@ -35,23 +35,24 @@ public class MatCodeServiceImpl implements MatCodeService {
 
     public static String generateMaterialCode(String matTypeCode, String curMaxSeq) {
         try {
-            int matCode = Integer.parseInt(matTypeCode);
-            // curMaxSeq 转换为数字
-            int curMaxSeqNum = Integer.parseInt(curMaxSeq) + 1;
-            int ss = matCode + curMaxSeqNum;
-
-            // ss 转为字符串，不足 5 位补 前面补充0
-            return String.format("%05d", ss);
+            String curMax = getString(curMaxSeq);
+            return matTypeCode + curMax;
         } catch (Exception e) {
             throw exception(ErrorCodeConstants.MAT_CAT_CODE_ERROR);
         }
 
     }
 
+    private static String getString(String curMaxSeq) {
+        int length = curMaxSeq.length();
+        int curMaxSeqNum = Integer.parseInt(curMaxSeq) + 1;
+        return String.format("%0" + length + "d", curMaxSeqNum);
+    }
+
     @Override
     public Long createMatCode(MatCodeSaveReqVO createReqVO) {
         // 校验 matCatCode 唯一性
-        validateMatCatCodeUnique(null, createReqVO.getMatCatCode());
+        validateMatCatCodeUnique(null, createReqVO.getMatTypeCode());
         // 插入
         MatCodeDO matCode = BeanUtils.toBean(createReqVO, MatCodeDO.class);
         matCodeMapper.insert(matCode);
@@ -64,12 +65,21 @@ public class MatCodeServiceImpl implements MatCodeService {
         // 校验存在
         validateMatCodeExists(updateReqVO.getId());
         // 校验 matCatCode 唯一性（更新时允许更新自己）
-        validateMatCatCodeUnique(updateReqVO.getId(), updateReqVO.getMatCatCode());
+        validateMatCatCodeUnique(updateReqVO.getId(), updateReqVO.getMatTypeCode());
         // 更新
         MatCodeDO updateObj = BeanUtils.toBean(updateReqVO, MatCodeDO.class);
         matCodeMapper.updateById(updateObj);
     }
 
+
+    @Override
+    public void updateCurMaxSeq(String matTypeCode) {
+        MatCodeDO matCode = getByMatCatCode(matTypeCode);
+        String string = getString(matCode.getCurMaxSeq());
+        matCode.setCurMaxSeq(string);
+        matCodeMapper.updateById(matCode);
+    }
+
     /**
      * 校验物料大类编码唯一性
      *
diff --git a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/material/MaterialServiceImpl.java b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/material/MaterialServiceImpl.java
index 281f80b1..5ff9ca4d 100644
--- a/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/material/MaterialServiceImpl.java
+++ b/mes-module-heli/mes-module-heli-biz/src/main/java/com/chanko/yunxi/mes/module/heli/service/material/MaterialServiceImpl.java
@@ -23,6 +23,7 @@ import com.chanko.yunxi.mes.module.heli.dal.mysql.material.MaterialMapper;
 import com.chanko.yunxi.mes.module.heli.dal.mysql.storageinventory.StorageInventoryMapper;
 import com.chanko.yunxi.mes.module.heli.enums.CodeEnum;
 import com.chanko.yunxi.mes.module.heli.enums.MaterialTypeEnum;
+import com.chanko.yunxi.mes.module.heli.service.matcode.MatCodeService;
 import com.chanko.yunxi.mes.module.heli.service.serialnumber.SerialNumberService;
 import com.chanko.yunxi.mes.module.heli.service.storage.StorageService;
 import com.chanko.yunxi.mes.module.heli.service.storagelog.StorageLogService;
@@ -65,6 +66,9 @@ public class MaterialServiceImpl implements MaterialService {
     @Resource
     private StorageInventoryMapper storageInventoryMapper;
 
+    @Resource
+    private MatCodeService matCodeService;
+
 
     @PostConstruct
     public void init(){
@@ -131,6 +135,7 @@ public class MaterialServiceImpl implements MaterialService {
         }
     }
 
+    @Transactional(rollbackFor = Exception.class)
     @Override
     public void updateMaterial(MaterialSaveReqVO updateReqVO) {
         // 校验存在
@@ -140,6 +145,8 @@ public class MaterialServiceImpl implements MaterialService {
         // 重复性判断
         validateMaterialRepeat(updateObj.getCode(), updateReqVO.getId());
         materialMapper.updateById(updateObj);
+        // 更新物料大类最大流水
+        matCodeService.updateCurMaxSeq(updateObj.getMatCate());
     }
 
     @Override
diff --git a/mes-ui/mes-ui-admin-vue3/src/views/heli/matcode/MatCodeForm.vue b/mes-ui/mes-ui-admin-vue3/src/views/heli/matcode/MatCodeForm.vue
index fba39195..919c13d2 100644
--- a/mes-ui/mes-ui-admin-vue3/src/views/heli/matcode/MatCodeForm.vue
+++ b/mes-ui/mes-ui-admin-vue3/src/views/heli/matcode/MatCodeForm.vue
@@ -8,8 +8,8 @@
       label-width="180px"
       v-loading="formLoading"
     >
-      <el-form-item label="物料大类" prop="matCatCode">
-        <el-select v-model="formData.matCatCode" clearable placeholder="请选择物料大类"  @change="handleMatCatChange" >
+      <el-form-item label="物料大类" prop="matTypeCode">
+        <el-select v-model="formData.matTypeCode" clearable placeholder="请选择物料大类"  @change="handleMatCatChange" >
           <el-option
               v-for="dict in getStrDictOptions(DICT_TYPE.HELI_MATERIAL_CODE)"
               :key="dict.value"
@@ -18,11 +18,12 @@
           />
         </el-select>
       </el-form-item>
+
       <el-form-item label="物料分类编码" prop="matTypeCode" >
-        <el-input v-model="formData.matTypeCode" placeholder="请输入物料分类编码"  maxlength="10" show-word-limit/>
+        <el-input v-model="formData.matTypeCode" placeholder="请输入物料分类编码"   show-word-limit disabled/>
       </el-form-item>
       <el-form-item label="最大流水号" prop="curMaxSeq" >
-        <el-input v-model="formData.curMaxSeq" placeholder="请输入当前最大流水号"  maxlength="5" show-word-limit/>
+        <el-input v-model="formData.curMaxSeq" placeholder="请输入当前最大流水号" maxlength="6" show-word-limit/>
       </el-form-item>
       <el-form-item label="状态" prop="status">
         <el-radio-group v-model="formData.status">
@@ -38,6 +39,7 @@
   </Dialog>
 </template>
 <script setup lang="ts">
+import { nextTick } from 'vue'
 import * as MatCodeApi from '@/api/heli/matcode'
 import {DICT_TYPE, getStrDictOptions} from "@/utils/dict";
 
@@ -64,7 +66,28 @@ const formRules = reactive({
   ],
   curMaxSeq: [
     { required: true, message: '最大流水号不能为空', trigger: 'blur' },
-    { max: 5, message: '最大流水号最多5个字符', trigger: 'blur' }
+    {
+      validator: (rule, value, callback) => {
+        if (value === '' || value === null || value === undefined) {
+          callback()
+          return
+        }
+        // 验证只能输入数字
+        if (!/^\d+$/.test(value)) {
+          callback(new Error('最大流水号只能输入数字'))
+          return
+        }
+        // 验证：最大流水号长度 + 物料分类编码长度 = 8
+        const matTypeCode = formData.value.matTypeCode || ''
+        const curMaxSeqStr = String(value)
+        if (matTypeCode.length + curMaxSeqStr.length !== 8) {
+          callback(new Error('最大流水号格式不正确！'))
+          return
+        }
+        callback()
+      },
+      trigger: 'blur'
+    }
   ],
   status: [{ required: true, message: '状态不能为空', trigger: 'blur' }],
 })
@@ -116,7 +139,6 @@ const submitForm = async () => {
 const resetForm = () => {
   formData.value = {
     id: undefined,
-    matCatCode: undefined,
     matCatName: undefined,
     matTypeCode: undefined,
     curMaxSeq: undefined,
@@ -134,8 +156,12 @@ const handleMatCatChange = (value) => {
   const dictOptions = getStrDictOptions(DICT_TYPE.HELI_MATERIAL_CODE)
   const selected = dictOptions.find(dict => dict.value === value)
   if (selected) {
-    formData.value.matCatCode = selected.value
+    formData.value.matTypeCode = selected.value
     formData.value.matCatName = selected.label
   }
+  // 重新验证最大流水号
+  nextTick(() => {
+    formRef.value?.validateField('curMaxSeq')
+  })
 }
 </script>
diff --git a/mes-ui/mes-ui-admin-vue3/src/views/heli/matcode/index.vue b/mes-ui/mes-ui-admin-vue3/src/views/heli/matcode/index.vue
index bcdf57b7..cd09a6e6 100644
--- a/mes-ui/mes-ui-admin-vue3/src/views/heli/matcode/index.vue
+++ b/mes-ui/mes-ui-admin-vue3/src/views/heli/matcode/index.vue
@@ -8,8 +8,8 @@
       :inline="true"
       label-width="90px"
     >
-      <el-form-item label="物料大类" prop="matCatCode">
-        <el-select v-model="queryParams.matCatCode" clearable placeholder="请选择物料大类" class="!w-250px">
+      <el-form-item label="物料大类" prop="matTypeCode">
+        <el-select v-model="queryParams.matTypeCode" clearable placeholder="请选择物料大类" class="!w-250px">
           <el-option
               v-for="dict in getStrDictOptions(DICT_TYPE.HELI_MATERIAL_CODE)"
               :key="dict.value"
@@ -49,7 +49,6 @@
   <ContentWrap>
     <el-table v-loading="loading" :data="list" :stripe="true" :show-overflow-tooltip="true">
       <el-table-column label="序号" type="index" align="center" width="60px"/>
-      <el-table-column label="物料大类编码" align="center" prop="matCatCode" />
       <el-table-column label="物料大类名称" align="center" prop="matCatName" />
       <el-table-column label="物料分类编码" align="center" prop="matTypeCode" />
       <el-table-column label="当前最大流水号" align="center" prop="curMaxSeq" />
@@ -78,14 +77,7 @@
           >
             编辑
           </el-button>
-          <el-button
-            link
-            type="danger"
-            @click="handleDelete(scope.row.id)"
-            v-hasPermi="['heli:mat-code:delete']"
-          >
-            删除
-          </el-button>
+
         </template>
       </el-table-column>
     </el-table>
@@ -120,7 +112,6 @@ const total = ref(0) // 列表的总页数
 const queryParams = reactive({
   pageNo: 1,
   pageSize: 10,
-  matCatCode: undefined,
   matCatName: undefined,
   matTypeCode: undefined,
   curMaxSeq: undefined,