diff --git a/src/main/java/com/spring/modules/quote/entity/QuoteDetailBomTree.java b/src/main/java/com/spring/modules/quote/entity/QuoteDetailBomTree.java
index fb1fc2d6..55b9cd62 100644
--- a/src/main/java/com/spring/modules/quote/entity/QuoteDetailBomTree.java
+++ b/src/main/java/com/spring/modules/quote/entity/QuoteDetailBomTree.java
@@ -65,6 +65,8 @@ public class QuoteDetailBomTree {
     private String umName;
     @TableField(exist = false)
     private String status;
+    @TableField(exist = false)
+    private Boolean recalculateCost; // 切换版本后是否重新计算成本
 
 
     /**
diff --git a/src/main/java/com/spring/modules/quote/service/impl/QuoteDetailBomTreeServiceImpl.java b/src/main/java/com/spring/modules/quote/service/impl/QuoteDetailBomTreeServiceImpl.java
index 9c070b56..0c66f303 100644
--- a/src/main/java/com/spring/modules/quote/service/impl/QuoteDetailBomTreeServiceImpl.java
+++ b/src/main/java/com/spring/modules/quote/service/impl/QuoteDetailBomTreeServiceImpl.java
@@ -288,12 +288,14 @@ public class QuoteDetailBomTreeServiceImpl extends ServiceImpl<QuoteDetailBomTre
     @Override
     @Transactional
     public void changeQuoteDetailBomTree(QuoteDetailBomTree tree) {
+        QuoteDetail detail = null;
+        
         // 获得选中的树
         if (Objects.nonNull(tree.getId())){
 
             QuoteDetailBomTree bomTree = getById(tree.getId());
             // 获得对应的QuoteDetail
-            QuoteDetail detail = quoteDetailService.getById(bomTree.getQuoteDetailId());
+            detail = quoteDetailService.getById(bomTree.getQuoteDetailId());
 
             // 获得节点的所有ids
             List<Long> ids = getAllChildIds(detail, bomTree.getId());
@@ -316,7 +318,7 @@ public class QuoteDetailBomTreeServiceImpl extends ServiceImpl<QuoteDetailBomTre
                     .eq(QuoteDetailBom::getBomId,bomTree.getId())
                     .update();
         }else {
-            QuoteDetail detail = new QuoteDetail();
+            detail = new QuoteDetail();
             detail.setQuoteId(tree.getQuoteId());
             detail.setQuoteNo(tree.getQuoteNo());
             detail.setId(tree.getQuoteDetailId());
@@ -329,6 +331,18 @@ public class QuoteDetailBomTreeServiceImpl extends ServiceImpl<QuoteDetailBomTre
             detail.setAlternativeNo(tree.getAlternativeNo());
             initQuoteDetailBomTree(detail, 0L,0);
         }
+        
+        // 如果勾选了重新计算成本，则执行成本计算
+        if (Boolean.TRUE.equals(tree.getRecalculateCost()) && detail != null) {
+            log.info("[BOM_SWITCH] Recalculate cost is enabled, executing cost calculation for QuoteDetailId: {}", detail.getId());
+            try {
+                quoteDetailService.queryQuoteDetailCost(detail);
+                log.info("[BOM_SWITCH] Cost calculation completed successfully for QuoteDetailId: {}", detail.getId());
+            } catch (Exception e) {
+                log.error("[BOM_SWITCH] Cost calculation failed for QuoteDetailId: {}, Error: {}", detail.getId(), e.getMessage(), e);
+                throw new RuntimeException("成本计算失败: " + e.getMessage());
+            }
+        }
 
     }