diff --git a/yudao-module-mall/yudao-module-promotion/src/main/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImpl.java b/yudao-module-mall/yudao-module-promotion/src/main/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImpl.java
index 91567bd..f42b44b 100644
--- a/yudao-module-mall/yudao-module-promotion/src/main/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImpl.java
+++ b/yudao-module-mall/yudao-module-promotion/src/main/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImpl.java
@@ -188,9 +188,8 @@ public class SeckillActivityServiceImpl implements SeckillActivityService {
     @Transactional(rollbackFor = Exception.class)
     public void updateSeckillStockIncr(Long id, Long skuId, Integer count) {
         SeckillProductDO product = seckillProductMapper.selectByActivityIdAndSkuId(id, skuId);
-        if (product == null) {
-            // 秒杀活动已删除时，库存已无回写对象；记日志并跳过，不阻断订单取消主流程
-            log.warn("[updateSeckillStockIncr][秒杀活动({}) sku({}) 的商品配置不存在（活动可能已删除），跳过库存回写]", id, skuId);
+        if (product == null) { // 活动已删除，或 SKU 已从活动移除，跳过秒杀库存恢复，避免阻断订单取消
+            log.warn("[updateSeckillStockIncr][活动({}) skuId({}) 对应的秒杀商品不存在，跳过库存恢复]", id, skuId);
             return;
         }
         // 更新活动商品库存
diff --git a/yudao-module-mall/yudao-module-promotion/src/test/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImplStockTest.java b/yudao-module-mall/yudao-module-promotion/src/test/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImplStockTest.java
new file mode 100644
index 0000000..41935b5
--- /dev/null
+++ b/yudao-module-mall/yudao-module-promotion/src/test/java/cn/iocoder/yudao/module/promotion/service/seckill/SeckillActivityServiceImplStockTest.java
@@ -0,0 +1,72 @@
+package cn.iocoder.yudao.module.promotion.service.seckill;
+
+import cn.iocoder.yudao.framework.test.core.ut.BaseMockitoUnitTest;
+import cn.iocoder.yudao.module.promotion.dal.dataobject.seckill.SeckillProductDO;
+import cn.iocoder.yudao.module.promotion.dal.mysql.seckill.seckillactivity.SeckillActivityMapper;
+import cn.iocoder.yudao.module.promotion.dal.mysql.seckill.seckillactivity.SeckillProductMapper;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+
+import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomLongId;
+import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomPojo;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+/**
+ * {@link SeckillActivityServiceImpl} 的库存单元测试类
+ *
+ * @author 芋道源码
+ */
+public class SeckillActivityServiceImplStockTest extends BaseMockitoUnitTest {
+
+    @InjectMocks
+    private SeckillActivityServiceImpl seckillActivityService;
+
+    @Mock
+    private SeckillActivityMapper seckillActivityMapper;
+    @Mock
+    private SeckillProductMapper seckillProductMapper;
+
+    @Test
+    public void testUpdateSeckillStockIncr_success() {
+        // 准备参数
+        Long id = randomLongId();
+        Long skuId = randomLongId();
+        Integer count = 2;
+        // mock 方法
+        SeckillProductDO product = randomPojo(SeckillProductDO.class, o -> {
+            o.setActivityId(id);
+            o.setSkuId(skuId);
+        });
+        when(seckillProductMapper.selectByActivityIdAndSkuId(eq(id), eq(skuId))).thenReturn(product);
+
+        // 调用
+        seckillActivityService.updateSeckillStockIncr(id, skuId, count);
+        // 断言
+        verify(seckillProductMapper).updateStockIncr(eq(product.getId()), eq(count));
+        verify(seckillActivityMapper).updateStockIncr(eq(id), eq(count));
+    }
+
+    @Test
+    public void testUpdateSeckillStockIncr_notExists() {
+        // 准备参数
+        Long id = randomLongId();
+        Long skuId = randomLongId();
+        Integer count = 2;
+        // mock 方法（活动已删除，或 SKU 已从活动移除）
+        when(seckillProductMapper.selectByActivityIdAndSkuId(eq(id), eq(skuId))).thenReturn(null);
+
+        // 调用
+        assertDoesNotThrow(() -> seckillActivityService.updateSeckillStockIncr(id, skuId, count));
+        // 断言
+        verify(seckillProductMapper, never()).updateStockIncr(anyLong(), anyInt());
+        verify(seckillActivityMapper, never()).updateStockIncr(anyLong(), anyInt());
+    }
+
+}