diff --git a/klp-wms/src/main/java/com/klp/service/impl/WmsMaterialCoilServiceImpl.java b/klp-wms/src/main/java/com/klp/service/impl/WmsMaterialCoilServiceImpl.java
index 5aabed7d..14f5d8e0 100644
--- a/klp-wms/src/main/java/com/klp/service/impl/WmsMaterialCoilServiceImpl.java
+++ b/klp-wms/src/main/java/com/klp/service/impl/WmsMaterialCoilServiceImpl.java
@@ -1987,6 +1987,23 @@ public class WmsMaterialCoilServiceImpl implements IWmsMaterialCoilService {
         return coil == null ? null : coil.getExclusiveStatus();
     }
 
+    /**
+     * 获取锁状态描述
+     */
+    private String getLockStatusDesc(Integer exclusiveStatus) {
+        if (exclusiveStatus == null) {
+            return "状态未知";
+        }
+        switch (exclusiveStatus) {
+            case 1: return "正在单步分卷中";
+            case 2: return "正在退火中";
+            case 3: return "已被酸扎领料锁定";
+            case 4: return "已被分卷领料锁定";
+            case 5: return "已被合卷领料锁定";
+            default: return "已被其他操作锁定（状态码：" + exclusiveStatus + "）";
+        }
+    }
+
     /**
      * 验证钢卷操作权限（检查独占状态）
      * @param coilId 钢卷ID
@@ -5031,7 +5048,8 @@ public class WmsMaterialCoilServiceImpl implements IWmsMaterialCoilService {
 
         // 3. 检查是否已被锁定或已有相同类型的待处理操作
         if (coil.getExclusiveStatus() != null && coil.getExclusiveStatus() != 0) {
-            throw new RuntimeException("钢卷正在进行操作");
+            String lockDesc = getLockStatusDesc(coil.getExclusiveStatus());
+            throw new RuntimeException("钢卷" + lockDesc + "，无法执行单步分卷");
         }
 
 //        // 3.1 检查是否已经有相同类型的待处理操作（防止重复领料）