diff --git a/src/main/java/com/spring/modules/rohs/controller/RohsController.java b/src/main/java/com/spring/modules/rohs/controller/RohsController.java
index 7d8196f3..a21c73d1 100644
--- a/src/main/java/com/spring/modules/rohs/controller/RohsController.java
+++ b/src/main/java/com/spring/modules/rohs/controller/RohsController.java
@@ -207,6 +207,29 @@ public class RohsController {
         return R.ok();
     }
 
+    /**
+     * 仅更新材料描述（不受流程节点和状态限制）
+     */
+    @PostMapping("/updateMaterialDesc")
+    @Transactional
+    public R updateMaterialDesc(@RequestBody RohsEntity rohs) {
+        if (StringUtils.isBlank(rohs.getSite()) || StringUtils.isBlank(rohs.getReferenceNo())) {
+            return R.error("工厂(site)和序列号(referenceNo)不能为空");
+        }
+        RohsEntity exists = rohsService.getDetail(rohs.getSite(), rohs.getReferenceNo());
+        if (exists == null) {
+            return R.error("未找到对应RoHs单据");
+        }
+        RohsEntity updateEntity = new RohsEntity();
+        updateEntity.setMaterialDesc(StringUtils.defaultString(rohs.getMaterialDesc()));
+        updateEntity.setUpdateDate(new Date());
+        updateEntity.setUpdateBy(getCurrentUserName());
+        QueryWrapper<RohsEntity> updateWrapper = new QueryWrapper<>();
+        updateWrapper.eq("site", rohs.getSite()).eq("reference_no", rohs.getReferenceNo());
+        rohsService.update(updateEntity, updateWrapper);
+        return R.ok();
+    }
+
     /**
      * 仅更新材料明细（用于编辑页签即时保存）
      */
diff --git a/src/main/java/com/spring/modules/rohs/service/impl/RohsServiceImpl.java b/src/main/java/com/spring/modules/rohs/service/impl/RohsServiceImpl.java
index c2aa6490..352f7c2c 100644
--- a/src/main/java/com/spring/modules/rohs/service/impl/RohsServiceImpl.java
+++ b/src/main/java/com/spring/modules/rohs/service/impl/RohsServiceImpl.java
@@ -186,20 +186,8 @@ public class RohsServiceImpl extends ServiceImpl<RohsMapper, RohsEntity> impleme
                 Object valueObj = getPropertyValue(rohs, nodeDetail.getPlmField());
                 fieldValue = convertFieldValue(valueObj);
                 if (StringUtils.isNotBlank(fieldValue) && "A".equals(nodeDetail.getFieldType())) {
-                    // 人员字段：PLM用户 -> 域控账号 -> OA人员ID
-                    SysUserEntity sysUser = sysUserDao.selectOne(new QueryWrapper<SysUserEntity>().eq("username", fieldValue));
-                    if (sysUser == null) {
-                        throw new RuntimeException("未找到PLM用户信息，用户编码: " + fieldValue);
-                    }
-                    String account = sysUser.getDomainControlAccount();
-                    if (StringUtils.isBlank(account)) {
-                        throw new RuntimeException("未获取到PLM人员域控账号，用户编码: " + fieldValue);
-                    }
-                    List<OaUserData> oaIds = sysUserDao.selectOaIdByAccount(account);
-                    if (oaIds == null || oaIds.isEmpty()) {
-                        throw new RuntimeException("未获取到域控账号对应的OA人员，域控账号: " + account);
-                    }
-                    fieldValue = oaIds.get(0).getId();
+                    // 人员字段（支持多选）：按 ; / , 分割后转换为OA人员ID，结果使用逗号拼接
+                    fieldValue = convertUserFieldToOaIds(fieldValue);
                 }
             }