diff --git a/klp-wms/src/main/java/com/klp/controller/WmsMaterialCoilController.java b/klp-wms/src/main/java/com/klp/controller/WmsMaterialCoilController.java
index 69285dd6..f3b9c451 100644
--- a/klp-wms/src/main/java/com/klp/controller/WmsMaterialCoilController.java
+++ b/klp-wms/src/main/java/com/klp/controller/WmsMaterialCoilController.java
@@ -394,6 +394,22 @@ public class WmsMaterialCoilController extends BaseController {
     }
 
 
+    // 取消单步分卷操作
+    @Log(title = "钢卷物料表", businessType = BusinessType.UPDATE)
+    @RepeatSubmit()
+    @PostMapping("/specialSplit/cancel")
+    public R<Map<String, Object>> cancelSpecialSplit(
+        @NotNull(message = "待操作记录ID不能为空")
+        @RequestParam Long pendingActionId) {
+
+        try {
+            Map<String, Object> result = iWmsMaterialCoilService.cancelSpecialSplit(pendingActionId);
+            return R.ok(result);
+        } catch (RuntimeException e) {
+            return R.fail("取消分卷失败：" + e.getMessage());
+        }
+    }
+
 
 
 }
diff --git a/klp-wms/src/main/java/com/klp/service/IWmsMaterialCoilService.java b/klp-wms/src/main/java/com/klp/service/IWmsMaterialCoilService.java
index d6c9e693..3a1bc0df 100644
--- a/klp-wms/src/main/java/com/klp/service/IWmsMaterialCoilService.java
+++ b/klp-wms/src/main/java/com/klp/service/IWmsMaterialCoilService.java
@@ -190,5 +190,6 @@ public interface IWmsMaterialCoilService {
      */
     Map<String, Object> completeSpecialSplit(@NotNull(message = "待操作记录ID不能为空") Long pendingActionId);
 
+    Map<String, Object> cancelSpecialSplit(@NotNull(message = "待操作记录ID不能为空") Long pendingActionId);
 }
 
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 69ff4f72..0d80e542 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
@@ -3468,6 +3468,60 @@ public class WmsMaterialCoilServiceImpl implements IWmsMaterialCoilService {
 
         return result;
     }
+    //Map<String, Object> cancelSpecialSplit(@NotNull(message = "待操作记录ID不能为空") Long pendingActionId);
+    /**
+     * 单步分卷 - 取消分卷（释放锁 + 回滚子卷）
+     */
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Map<String, Object> cancelSpecialSplit(Long pendingActionId) {
+
+        Map<String, Object> result = new HashMap<>();
+        result.put("success", false);
+
+        // 1. 查询待操作记录
+        WmsCoilPendingActionVo pendingAction = coilPendingActionService.queryById(pendingActionId);
+        if (pendingAction == null) {
+            throw new RuntimeException("待操作记录不存在");
+        }
+
+        // 2. 已完成的分卷不允许取消
+        if (Objects.equals(pendingAction.getActionStatus(), 2)) {
+            throw new RuntimeException("该分卷操作已完成，无法取消");
+        }
+
+        // 删除待操作记录
+        coilPendingActionService.deleteWithValidByIds(Arrays.asList(pendingActionId), false);
+        // 3. 查询母卷
+        WmsMaterialCoil parentCoil = baseMapper.selectById(pendingAction.getCoilId());
+        if (parentCoil == null) {
+            throw new RuntimeException("母卷不存在");
+        }
+
+        if (parentCoil.getDataType() == 0) {
+            throw new RuntimeException("母卷已成为历史数据，无法取消分卷");
+        }
+
+        // 4. 校验母卷是否处于“单步分卷中”
+        if (Objects.equals(parentCoil.getExclusiveStatus(), 0)) {
+            throw new RuntimeException("母卷未处于单步分卷状态，无法取消");
+        }
+
+        // 释放母卷独占锁
+        if (Objects.equals(parentCoil.getExclusiveStatus(), 1)) {
+            LambdaUpdateWrapper<WmsMaterialCoil> parentUpdate = new LambdaUpdateWrapper<>();
+            parentUpdate.eq(WmsMaterialCoil::getCoilId, parentCoil.getCoilId())
+                .set(WmsMaterialCoil::getExclusiveStatus, 0);
+            baseMapper.update(null, parentUpdate);
+        }
+
+        result.put("success", true);
+        result.put("message", "取消单步分卷成功");
+
+        return result;
+    }
+
+
 
 
 }