diff --git a/server/admin/internal/modules/financeorder/legacy_writer.go b/server/admin/internal/modules/financeorder/legacy_writer.go
index 6315b671..2212f319 100644
--- a/server/admin/internal/modules/financeorder/legacy_writer.go
+++ b/server/admin/internal/modules/financeorder/legacy_writer.go
@@ -18,6 +18,8 @@ var (
 	errLegacyCoinSellerOrderDuplicate = errors.New("legacy coin seller recharge order already exists")
 )
 
+const legacyCoinSellerRechargeType = "USDT-进货"
+
 type coinSellerTarget struct {
 	UserID        int64
 	DisplayUserID string
@@ -214,7 +216,9 @@ WHERE id = ?`, input.CoinAmount, input.UserID, input.GrantedAt, balanceID); err
 		return legacyRechargeGrantResult{}, err
 	}
 	waterID := legacySnowflakeLikeID(input.GrantedAt)
-	rechargeType := legacyRechargeType(input.ProviderCode, input.Chain)
+	// likei-services 经理中心按固定 recharge_type=USDT-进货 汇总币商入金；
+	// V5Pay、Binance 站内转账和链上网络属于支付凭证维度，已完整保存在 admin 订单中，不能写进旧钱包的统计分类字段。
+	rechargeType := legacyCoinSellerRechargeType
 	if _, err := tx.ExecContext(queryCtx, `
 INSERT INTO user_freight_balance_running_water
   (id, sys_origin, user_id, accept_user_id, seller_id, type, quantity, usd_quantity, balance, amount, recharge_type, origin, remark, create_user, update_user, create_time, update_time)
@@ -258,17 +262,6 @@ func decimalBalanceAfter(earnPointsText string, consumptionText string, delta in
 	return int64(earn) + delta - int64(consumption), nil
 }
 
-func legacyRechargeType(providerCode string, chain string) string {
-	providerCode = strings.ToUpper(strings.TrimSpace(providerCode))
-	if providerCode == "USDT" {
-		if chain = strings.ToUpper(strings.TrimSpace(chain)); chain != "" {
-			return "USDT-" + chain + "-进货"
-		}
-		return "USDT-进货"
-	}
-	return providerCode + "-进货"
-}
-
 func legacySnowflakeLikeID(now time.Time) int64 {
 	// 旧服务用 MyBatis ASSIGN_ID 写 bigint 主键；后台没有接入旧雪花 worker，只需保证单进程内足够唯一且单调。
 	return now.UTC().UnixMilli()*1000 + int64(legacyWaterIDCounter.Add(1)%1000)
diff --git a/server/admin/internal/modules/financeorder/legacy_writer_test.go b/server/admin/internal/modules/financeorder/legacy_writer_test.go
index 563d6604..e8fd0572 100644
--- a/server/admin/internal/modules/financeorder/legacy_writer_test.go
+++ b/server/admin/internal/modules/financeorder/legacy_writer_test.go
@@ -32,7 +32,7 @@ func TestLegacyCoinSellerRechargeWriterGrantUpdatesBalanceAndRunningWater(t *tes
 		WithArgs(int64(1200), int64(10001), grantedAt, int64(77)).
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	walletMock.ExpectExec(`(?s)INSERT INTO user_freight_balance_running_water`).
-		WithArgs(sqlmock.AnyArg(), "ATYOU", int64(10001), int64(10001), nil, int64(1200), int64(5200), "12.34", "MIFAPAY-进货", "MIFA-001", int64(10001), int64(10001), grantedAt, grantedAt).
+		WithArgs(sqlmock.AnyArg(), "ATYOU", int64(10001), int64(10001), nil, int64(1200), int64(5200), "12.34", legacyCoinSellerRechargeType, "MIFA-001", int64(10001), int64(10001), grantedAt, grantedAt).
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	walletMock.ExpectCommit()