diff --git a/netcore/src/Modularity/Extend/NCC.Extend.Entitys/Dto/LqPackageInfo/ActivityStatisticsOutput.cs b/netcore/src/Modularity/Extend/NCC.Extend.Entitys/Dto/LqPackageInfo/ActivityStatisticsOutput.cs
index 2cc73dc..4d46dec 100644
--- a/netcore/src/Modularity/Extend/NCC.Extend.Entitys/Dto/LqPackageInfo/ActivityStatisticsOutput.cs
+++ b/netcore/src/Modularity/Extend/NCC.Extend.Entitys/Dto/LqPackageInfo/ActivityStatisticsOutput.cs
@@ -51,5 +51,10 @@ namespace NCC.Extend.Entitys.Dto.LqPackageInfo
         /// 退卡率（退卡数量 / 开单数量）
         /// </summary>
         public decimal RefundRate { get; set; }
+
+        /// <summary>
+        /// 欠款金额（所有开单的欠款总和）
+        /// </summary>
+        public decimal DebtAmount { get; set; }
     }
 }
diff --git a/netcore/src/Modularity/Extend/NCC.Extend/LqPackageInfoService.cs b/netcore/src/Modularity/Extend/NCC.Extend/LqPackageInfoService.cs
index 2b4aff6..c6246dc 100644
--- a/netcore/src/Modularity/Extend/NCC.Extend/LqPackageInfoService.cs
+++ b/netcore/src/Modularity/Extend/NCC.Extend/LqPackageInfoService.cs
@@ -586,6 +586,7 @@ namespace NCC.Extend.LqPackageInfo
         /// - NetBillingCount: 净开单数量（开单数量 - 退卡数量）
         /// - NetBillingAmount: 净开单金额（开单金额 - 退卡金额）
         /// - RefundRate: 退卡率（退卡数量 / 开单数量）
+        /// - DebtAmount: 欠款金额（所有开单的欠款总和）
         /// </remarks>
         /// <param name="input">查询参数</param>
         /// <returns>营销活动统计数据</returns>
@@ -629,7 +630,8 @@ namespace NCC.Extend.LqPackageInfo
                         RefundAmount = 0,
                         NetBillingCount = 0,
                         NetBillingAmount = 0,
-                        RefundRate = 0
+                        RefundRate = 0,
+                        DebtAmount = 0
                     };
                 }
 
@@ -653,7 +655,8 @@ namespace NCC.Extend.LqPackageInfo
                 var billingSql = $@"
                     SELECT 
                         COUNT(DISTINCT kd.F_Id) as billing_count,
-                        SUM(CAST(px.F_ActualPrice AS DECIMAL(18,2))) as billing_amount
+                        SUM(CAST(px.F_ActualPrice AS DECIMAL(18,2))) as billing_amount,
+                        SUM(CAST(kd.qk AS DECIMAL(18,2))) as debt_amount
                     FROM lq_kd_pxmx px
                     LEFT JOIN lq_kd_kdjlb kd ON px.glkdbh = kd.F_Id
                     WHERE px.F_IsEffective = 1 
@@ -665,6 +668,7 @@ namespace NCC.Extend.LqPackageInfo
                 var billingData = await _db.Ado.SqlQueryAsync<dynamic>(billingSql);
                 var billingCount = Convert.ToInt32(billingData.FirstOrDefault()?.billing_count ?? 0);
                 var billingAmount = Convert.ToDecimal(billingData.FirstOrDefault()?.billing_amount ?? 0);
+                var debtAmount = Convert.ToDecimal(billingData.FirstOrDefault()?.debt_amount ?? 0);
 
                 // 7. 退卡统计
                 var refundSql = $@"
@@ -699,7 +703,8 @@ namespace NCC.Extend.LqPackageInfo
                     RefundAmount = refundAmount,
                     NetBillingCount = netBillingCount,
                     NetBillingAmount = netBillingAmount,
-                    RefundRate = refundRate
+                    RefundRate = refundRate,
+                    DebtAmount = debtAmount
                 };
             }
             catch (Exception ex)