diff --git a/mom-backend/ktg-mes/src/main/java/com/ktg/mes/md/service/impl/MdBomServiceImpl.java b/mom-backend/ktg-mes/src/main/java/com/ktg/mes/md/service/impl/MdBomServiceImpl.java
index 50438b6..c9b990a 100644
--- a/mom-backend/ktg-mes/src/main/java/com/ktg/mes/md/service/impl/MdBomServiceImpl.java
+++ b/mom-backend/ktg-mes/src/main/java/com/ktg/mes/md/service/impl/MdBomServiceImpl.java
@@ -99,12 +99,11 @@ public class MdBomServiceImpl implements IMdBomService
                 bomCode += "-V1.00";
             }
             mdBom.setBomCode(bomCode);
-        } else {
-            // 检查BOM编码是否已存在
-            MdBom existBom = mdBomMapper.selectMdBomByBomCode(mdBom.getBomCode());
-            if (existBom != null) {
-                return AjaxResult.error("BOM编码已存在");
-            }
+        }
+        // 无论编码是自动生成还是手动传入，都校验唯一性
+        MdBom existBom = mdBomMapper.selectMdBomByBomCode(mdBom.getBomCode());
+        if (existBom != null) {
+            return AjaxResult.error("BOM编码已存在：" + mdBom.getBomCode());
         }
 
         // 5. 从产品物料获取冗余字段信息