diff --git a/klp-wms/src/main/java/com/klp/service/impl/WmsFurnacePlanCoilServiceImpl.java b/klp-wms/src/main/java/com/klp/service/impl/WmsFurnacePlanCoilServiceImpl.java
index a6ffdeb3..d4364fc4 100644
--- a/klp-wms/src/main/java/com/klp/service/impl/WmsFurnacePlanCoilServiceImpl.java
+++ b/klp-wms/src/main/java/com/klp/service/impl/WmsFurnacePlanCoilServiceImpl.java
@@ -95,7 +95,20 @@ public class WmsFurnacePlanCoilServiceImpl implements IWmsFurnacePlanCoilService
      * 保存前的数据校验
      */
     private void validEntityBeforeSave(WmsFurnacePlanCoil entity){
-        //TODO 做一些数据校验,如唯一约束
+        // 检查是否已存在相同的planId和coilId组合
+        LambdaQueryWrapper<WmsFurnacePlanCoil> queryWrapper = Wrappers.lambdaQuery();
+        queryWrapper.eq(WmsFurnacePlanCoil::getPlanId, entity.getPlanId())
+                    .eq(WmsFurnacePlanCoil::getCoilId, entity.getCoilId());
+
+        // 如果是更新操作，需要排除当前记录
+        if (entity.getPlanCoilId() != null) {
+            queryWrapper.ne(WmsFurnacePlanCoil::getPlanCoilId, entity.getPlanCoilId());
+        }
+
+        long count = baseMapper.selectCount(queryWrapper);
+        if (count > 0) {
+            throw new RuntimeException("该计划下已存在此钢卷，不能重复添加");
+        }
     }
 
     /**