diff --git a/src/main/java/com/spring/modules/part/controller/PartInformationController.java b/src/main/java/com/spring/modules/part/controller/PartInformationController.java
index f0e360f7..45b14642 100644
--- a/src/main/java/com/spring/modules/part/controller/PartInformationController.java
+++ b/src/main/java/com/spring/modules/part/controller/PartInformationController.java
@@ -143,6 +143,16 @@ public class PartInformationController {
         return R.ok();
     }
 
+    /**
+     * 仅更新物料图纸编码
+     */
+    @PostMapping(value="/updateDrawingNo")
+    @ResponseBody
+    public R updateDrawingNo(@RequestBody PartInformationVo data) {
+        partInformationService.updatePartDrawingNo(data);
+        return R.ok();
+    }
+
     /**
      * @description: 材料信息删除
      * @author: fengyuan_yang
diff --git a/src/main/java/com/spring/modules/part/service/PartInformationService.java b/src/main/java/com/spring/modules/part/service/PartInformationService.java
index 3b6df6d2..dd3d343a 100644
--- a/src/main/java/com/spring/modules/part/service/PartInformationService.java
+++ b/src/main/java/com/spring/modules/part/service/PartInformationService.java
@@ -27,6 +27,11 @@ public interface PartInformationService {
 
     void partInformationEdit(PartInformationVo data);
 
+    /**
+     * 仅更新物料编码中的图纸编码（drawing_no）
+     */
+    void updatePartDrawingNo(PartInformationVo data);
+
     void partInformationDelete(PartInformationEntity data);
 
     List<PartSubPropertiesValueData> getPartItem(PartSubPropertiesValueData data);
diff --git a/src/main/java/com/spring/modules/part/service/impl/PartInformationServiceImpl.java b/src/main/java/com/spring/modules/part/service/impl/PartInformationServiceImpl.java
index 845e8dd9..d74d299c 100644
--- a/src/main/java/com/spring/modules/part/service/impl/PartInformationServiceImpl.java
+++ b/src/main/java/com/spring/modules/part/service/impl/PartInformationServiceImpl.java
@@ -1259,6 +1259,33 @@ public class PartInformationServiceImpl extends ServiceImpl<PartInformationMappe
         }
     }
 
+    @Override
+    @Transactional
+    public void updatePartDrawingNo(PartInformationVo data) {
+        if (!StringUtils.hasText(data.getSite()) || !StringUtils.hasText(data.getPartNo())) {
+            throw new RuntimeException("缺少site或物料编码，无法自动保存编码！");
+        }
+        if (!StringUtils.hasText(data.getDrawingNo()) || "NA".equalsIgnoreCase(data.getDrawingNo().trim())) {
+            throw new RuntimeException("编码为空，无法自动保存！");
+        }
+        PartInformationEntity partData = partInformationMapper.selectOne(
+                new QueryWrapper<PartInformationEntity>()
+                        .eq("site", data.getSite())
+                        .eq("part_no", data.getPartNo())
+        );
+        if (partData == null) {
+            throw new RuntimeException("未找到对应物料，无法自动保存编码！");
+        }
+        PartInformationEntity updateData = new PartInformationEntity();
+        updateData.setDrawingNo(data.getDrawingNo().trim());
+        updateData.setUpdateBy(data.getUpdateBy());
+        UpdateWrapper<PartInformationEntity> updateWrapper = new UpdateWrapper<>();
+        updateWrapper.eq("site", data.getSite());
+        updateWrapper.eq("part_no", data.getPartNo());
+        partInformationMapper.update(updateData, updateWrapper);
+        recordChangeRemark(data.getSite(), data.getPartNo(), data.getUpdateBy(), "占有编码自动保存");
+    }
+
     /**
      * 物料编辑校验参数
      * @param inData