diff --git a/src/main/java/com/xujie/sys/modules/ecss/data/EcssCoDelImportExportSummaryRow.java b/src/main/java/com/xujie/sys/modules/ecss/data/EcssCoDelImportExportSummaryRow.java
index a6d13282..e9c6bdb0 100644
--- a/src/main/java/com/xujie/sys/modules/ecss/data/EcssCoDelImportExportSummaryRow.java
+++ b/src/main/java/com/xujie/sys/modules/ecss/data/EcssCoDelImportExportSummaryRow.java
@@ -42,6 +42,7 @@ public class EcssCoDelImportExportSummaryRow {
 
     private BigDecimal netWeight;
 
+    /** 毛重：装箱单毛重合计 + 栈板主数据 pallet_weight × 托盘头 pallet_qty */
     private BigDecimal grossWeight;
 
     /** 体积：ecss_CoDelPalletHeader.volume 按发货单汇总 */
diff --git a/src/main/resources/mapper/ecss/CoDelMapper.xml b/src/main/resources/mapper/ecss/CoDelMapper.xml
index f1c0aa16..c88c5faf 100644
--- a/src/main/resources/mapper/ecss/CoDelMapper.xml
+++ b/src/main/resources/mapper/ecss/CoDelMapper.xml
@@ -1936,7 +1936,7 @@ create_by,create_date,update_by,update_date
                 CONVERT(INT, ROUND(ISNULL(box.sum_box_qty, 0), 0))
             ) AS boxQty,
             COALESCE(d.net_weight, box.sum_net_weight) AS netWeight,
-            COALESCE(d.gross_weight, box.sum_gross_weight) AS grossWeight,
+            ISNULL(box.sum_gross_weight, 0) + ISNULL(palWgt.sum_pallet_weight, 0) AS grossWeight,
             CONVERT(DECIMAL(20, 6), ISNULL(palVol.sum_pallet_volume, 0)) AS totalVolume,
             det.total_qty AS totalQty,
             det.currency_code AS currencyCode,
@@ -1980,6 +1980,20 @@ create_by,create_date,update_by,update_date
             FROM ecss_CoDelPalletHeader
             GROUP BY site, bu_no, delNo
         ) palVol ON palVol.site = a.site AND palVol.bu_no = a.bu_no AND palVol.delNo = a.delNo
+        LEFT JOIN (
+            SELECT
+                h.site,
+                h.bu_no,
+                h.delNo,
+                SUM(ISNULL(p.pallet_weight, 0) * ISNULL(h.pallet_qty, 0)) AS sum_pallet_weight
+            FROM ecss_CoDelPalletHeader h
+            LEFT JOIN (
+                SELECT Site, BuNo, pallet_no, MAX(pallet_weight) AS pallet_weight
+                FROM ecss_pallet
+                GROUP BY Site, BuNo, pallet_no
+            ) p ON h.pallet = p.pallet_no AND h.site = p.Site AND h.bu_no = p.BuNo
+            GROUP BY h.site, h.bu_no, h.delNo
+        ) palWgt ON palWgt.site = a.site AND palWgt.bu_no = a.bu_no AND palWgt.delNo = a.delNo
         <where>
             <if test="query.buNo != null and query.buNo != ''">
                 AND a.bu_no = #{query.buNo}