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 31d0747d..12ade183 100644
--- a/src/main/java/com/spring/modules/rohs/controller/RohsController.java
+++ b/src/main/java/com/spring/modules/rohs/controller/RohsController.java
@@ -185,6 +185,37 @@ public class RohsController {
         return R.ok();
     }
 
+    /**
+     * 仅更新材料明细（用于编辑页签即时保存）
+     */
+    @PostMapping("/updateMaterials")
+    @Transactional
+    public R updateMaterials(@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");
+        }
+        if ("已完成".equals(exists.getStatus())) {
+            return R.error("已完成状态的单据不允许修改材料");
+        }
+
+        rohsService.saveOrUpdateMaterials(rohs);
+
+        RohsEntity updateEntity = new RohsEntity();
+        if (rohs.getMaterialList() != null && !rohs.getMaterialList().isEmpty()) {
+            updateEntity.setIfsPartNo(rohs.getMaterialList().get(0).getTestPartNo());
+        } else {
+            updateEntity.setIfsPartNo(null);
+        }
+        QueryWrapper<RohsEntity> updateWrapper = new QueryWrapper<>();
+        updateWrapper.eq("site", rohs.getSite()).eq("reference_no", rohs.getReferenceNo());
+        rohsService.update(updateEntity, updateWrapper);
+        return R.ok();
+    }
+
     /**
      * 下达
      */