diff --git a/.crmeb/skills/crmeb-order-dev/references/order-aftersale.md b/.crmeb/skills/crmeb-order-dev/references/order-aftersale.md
index 75ed30b33..359bc98fe 100644
--- a/.crmeb/skills/crmeb-order-dev/references/order-aftersale.md
+++ b/.crmeb/skills/crmeb-order-dev/references/order-aftersale.md
@@ -72,6 +72,8 @@ AfterSaleServices::refund
 - Handler 中的资金/资源副作用一律经 `RefundEffectContextInterface::once()` 登记去重，禁止直接裸写。
 - 中台 `refund_status`（0 无 / 1 申请中 / 2 已退）由 Adapter `resolveRefundStatus` 推导，退款完成时 `syncStatus` 同步。
 
+**资金流水（`eb_capital_flow`）只记真实资金进出**：判定统一入口为 `PayServices::isCashChannel()`（第三方在线渠道 + 线下支付；余额 `yue`、后台代付、0 元单一律 false）。`CapitalFlowServices::setFlow()` 内部已做拦截，退款链路在调用前还要排除 `refund_type=balance` / `refund_method=balance` 的站内结转，即「余额支付订单退款」「原路退款但改退余额」都不产生现金流出，不记流水。
+
 > **现状说明**：`OrderRefundCreateAfter / OrderRefundRefuse / OrderRefundCancelAfter` 的模块监听器已注册但服务层触发点待接线（见 [订单生命周期·事件地图](order-lifecycle.md#三订单事件地图)），相关后置逻辑目前挂在 `AfterSaleServices` 内部回调（`lifecycle->afterApply/afterAudit`）。
 
 ## 五、自定义售后 Handler 开发步骤
diff --git a/backend/app/services/order/RefundEffectServices.php b/backend/app/services/order/RefundEffectServices.php
index 38ddfec1a..863b200ad 100644
--- a/backend/app/services/order/RefundEffectServices.php
+++ b/backend/app/services/order/RefundEffectServices.php
@@ -9,6 +9,7 @@ use app\dao\order\RefundEffectDao;
 use app\dao\order\RefundOrderDao;
 use app\model\order\OrderCenter;
 use app\model\order\RefundOrder;
+use app\services\pay\PayServices;
 use app\services\statistic\CapitalFlowServices;
 use app\services\user\UserBillServices;
 use app\services\user\UserMoneyServices;
@@ -380,7 +381,12 @@ class RefundEffectServices extends BaseService implements RefundEffectContextInt
             });
         }
 
-        if (bccomp($amount, '0.00', 2) > 0) {
+        // 资金流水只记录真实资金流出：退回余额（refund_method=balance）或余额支付订单退款
+        // 属于站内结转，钱没有离开平台，不记流水
+        $flowPayType = (string)($order['pay_type'] ?? ($refundOrder['pay_channel'] ?? ''));
+        /** @var PayServices $payServices */
+        $payServices = $this->app->make(PayServices::class);
+        if (!$localBalance && bccomp($amount, '0.00', 2) > 0 && $payServices->isCashChannel($flowPayType)) {
             $this->once('capital_flow', (string)$refundOrder['refund_no'], ['amount' => $amount], function () use ($order, $amount): void {
                 /** @var UserServices $userServices */
                 $userServices = $this->app->make(UserServices::class);
diff --git a/backend/app/services/order/RefundExecutorServices.php b/backend/app/services/order/RefundExecutorServices.php
index c37986ea5..a539dc58e 100644
--- a/backend/app/services/order/RefundExecutorServices.php
+++ b/backend/app/services/order/RefundExecutorServices.php
@@ -97,7 +97,7 @@ class RefundExecutorServices extends BaseService
         }
 
         // 3. 资本流水 + 开票标记
-        $this->writeFlow($order, $refundPrice);
+        $this->writeFlow($order, $refundPrice, $context);
         $this->markInvoiceRefunded($order);
 
         return [
@@ -459,20 +459,26 @@ class RefundExecutorServices extends BaseService
 
     /**
      * 写资本流水（refund 类型）
+     * 只有真实资金流出才记账：退回用户余额属于站内结转，余额支付订单退款同理，均不记流水
      * @param array $order 中台订单数据
      * @param float $refundPrice 退款金额
+     * @param array $context 退款上下文（refund_type: original/balance）
      * @return void
      */
-    protected function writeFlow(array $order, float $refundPrice): void
+    protected function writeFlow(array $order, float $refundPrice, array $context = []): void
     {
         if ($refundPrice <= 0) {
             return;
         }
+        // 退款到余额：钱没离开平台，只是从订单转为用户余额，不产生资金流出
+        if (($context['refund_type'] ?? 'original') === 'balance') {
+            return;
+        }
         $payType = (string)($order['pay_type'] ?? '');
-        // 是否真实资金渠道由 PayServices 动态判定（第三方渠道来自驱动注册中心，yue/offline 为系统常量渠道）
+        // 是否真实资金渠道由 PayServices 动态判定（第三方渠道来自驱动注册中心，offline 为系统常量渠道）
         /** @var PayServices $payServices */
         $payServices = app()->make(PayServices::class);
-        if (!$payServices->isRealPaymentChannel($payType)) {
+        if (!$payServices->isCashChannel($payType)) {
             return;
         }
         /** @var UserServices $userServices */
diff --git a/backend/app/services/pay/PayServices.php b/backend/app/services/pay/PayServices.php
index e3d5018b4..d49ceceec 100644
--- a/backend/app/services/pay/PayServices.php
+++ b/backend/app/services/pay/PayServices.php
@@ -337,8 +337,30 @@ class PayServices
      */
     public function isRealPaymentChannel(string $payType): bool
     {
-        // 系统固有渠道：余额支付 / 线下支付，不随驱动扩展，常量判定合法
-        if ($payType === self::YUE_PAY || $payType === self::OFFLINE_PAY) {
+        // 余额支付：站内虚拟资产结算，属于"有结算但无资金流"，在此方法中视为真实支付
+        if ($payType === self::YUE_PAY) {
+            return true;
+        }
+        return $this->isCashChannel($payType);
+    }
+
+    /**
+     * 判断支付方式是否产生真实资金进出（现金收付渠道）
+     * 包含：第三方在线支付渠道（由驱动注册中心动态获取）+ 线下支付
+     * 排除：余额支付（站内虚拟资产，充值后消费不再产生现金流动）、
+     *       空支付方式（0 元单）、后台代付等无资金流动的结算方式
+     * 资金流水（eb_capital_flow）只允许记录本方法判定为 true 的支付方式
+     * @param string $payType 支付方式标识
+     * @return bool
+     */
+    public function isCashChannel(string $payType): bool
+    {
+        $payType = trim($payType);
+        if ($payType === '' || $payType === self::YUE_PAY) {
+            return false;
+        }
+        // 线下支付为系统固有渠道，不随驱动扩展，常量判定合法
+        if ($payType === self::OFFLINE_PAY) {
             return true;
         }
         // 第三方渠道：从驱动注册中心动态获取
diff --git a/backend/app/services/statistic/CapitalFlowServices.php b/backend/app/services/statistic/CapitalFlowServices.php
index b89362d70..047edb371 100644
--- a/backend/app/services/statistic/CapitalFlowServices.php
+++ b/backend/app/services/statistic/CapitalFlowServices.php
@@ -33,8 +33,12 @@ class CapitalFlowServices extends BaseService
 
     /**
      * 添加资金流水
-     * @param $orderInfo
-     * @param string $type
+     * 资金流水记录的是平台真实资金进出（第三方在线收款、线下收银、充值及对应退款），
+     * 余额支付、后台代付、0 元单等站内虚拟结算不产生现金流动，一律不记账。
+     * 该判定放在此处作为唯一出口，避免各业务分支各自判断导致漏过滤。
+     * @param array $orderInfo 业务订单信息
+     * @param string $type 流水类型
+     * @return bool 是否写入流水
      */
     public function setFlow($orderInfo, $type = '')
     {
@@ -97,12 +101,19 @@ class CapitalFlowServices extends BaseService
                 $data['pay_type'] = $orderInfo['pay_type'];
                 break;
             default:
-                break;
+                // 未知业务类型不记账，避免写入无金额无单号的空流水
+                return false;
         }
-        $data['nickname'] = $orderInfo['nickname'];
-        $data['phone'] = $orderInfo['phone'];
+        // 非现金渠道（余额支付/后台代付/0 元单等）无真实资金流，不记流水
+        /** @var PayServices $payServices */
+        $payServices = app()->make(PayServices::class);
+        if (!$payServices->isCashChannel((string)($data['pay_type'] ?? ''))) {
+            return false;
+        }
+        $data['nickname'] = $orderInfo['nickname'] ?? '';
+        $data['phone'] = $orderInfo['phone'] ?? '';
         $data['add_time'] = time();
-        $this->dao->save($data);
+        return (bool)$this->dao->save($data);
     }
 
     /**