diff --git a/klp-mes/src/main/java/com/klp/mes/qc/service/impl/QcQualityReviewServiceImpl.java b/klp-mes/src/main/java/com/klp/mes/qc/service/impl/QcQualityReviewServiceImpl.java
index bdb9fa99e..1325fc981 100644
--- a/klp-mes/src/main/java/com/klp/mes/qc/service/impl/QcQualityReviewServiceImpl.java
+++ b/klp-mes/src/main/java/com/klp/mes/qc/service/impl/QcQualityReviewServiceImpl.java
@@ -45,6 +45,9 @@ import java.util.stream.Collectors;
 @Service
 public class QcQualityReviewServiceImpl implements IQcQualityReviewService {
 
+    /** 技术部逻辑库ID（C/D级改判后移入此库区） */
+    private static final Long TECH_WAREHOUSE_ID = 2019583656787259393L;
+
     private final QcQualityReviewMapper baseMapper;
     private final QcQualityReviewCoilMapper coilMapper;
     private final QcQualityReviewLogMapper logMapper;
@@ -319,7 +322,15 @@ public class QcQualityReviewServiceImpl implements IQcQualityReviewService {
                     coil.getCoilId(), coil.getRegradeQuality(), reason);
             }
 
-            // 2. 更新明细执行状态
+            // 2. 根据改判后质量等级自动更新钢卷所在逻辑库区
+            Long targetWarehouseId = determineTargetWarehouse(coil.getRegradeQuality());
+            if (targetWarehouseId != null && coil.getCoilId() != null) {
+                wmsMaterialCoilMapper.update(null, Wrappers.<WmsMaterialCoil>lambdaUpdate()
+                    .eq(WmsMaterialCoil::getCoilId, coil.getCoilId())
+                    .set(WmsMaterialCoil::getWarehouseId, targetWarehouseId));
+            }
+
+            // 3. 更新明细执行状态
             coilMapper.update(null, Wrappers.<QcQualityReviewCoil>lambdaUpdate()
                 .eq(QcQualityReviewCoil::getDetailId, coil.getDetailId())
                 .set(QcQualityReviewCoil::getExecuteStatus, 1L)
@@ -400,6 +411,23 @@ public class QcQualityReviewServiceImpl implements IQcQualityReviewService {
         return "QR-" + dateStr + "-" + String.format("%04d", count + 1);
     }
 
+    /**
+     * 根据改判后质量等级确定目标逻辑库区
+     * O/A/B → 不移动，C+/C/C- → 技术部逻辑库，D+/D/D- → 技术部逻辑库
+     */
+    private Long determineTargetWarehouse(String regradeQuality) {
+        if (regradeQuality == null) return null;
+        // O/A/B 级不移动
+        if ("O".equals(regradeQuality) || "A".equals(regradeQuality) || "B".equals(regradeQuality)) {
+            return null;
+        }
+        // C/D 级 → 技术部逻辑库
+        if (regradeQuality.startsWith("C") || regradeQuality.startsWith("D")) {
+            return TECH_WAREHOUSE_ID;
+        }
+        return null;
+    }
+
     private void validEntityBeforeSave(QcQualityReview entity) {
         if (StringUtils.isBlank(entity.getProductName())) {
             throw new RuntimeException("产品名称不能为空");