diff --git a/jeepay-core/src/main/java/com/jeequan/jeepay/core/utils/SeqKit.java b/jeepay-core/src/main/java/com/jeequan/jeepay/core/utils/SeqKit.java
index 2c9bb78288a7098d0dba952964264d3b19682f45..d98828358053ed0ea745aff4cd298ed6f352b68b 100644
--- a/jeepay-core/src/main/java/com/jeequan/jeepay/core/utils/SeqKit.java
+++ b/jeepay-core/src/main/java/com/jeequan/jeepay/core/utils/SeqKit.java
@@ -25,20 +25,29 @@ import java.util.concurrent.atomic.AtomicLong;
 * 序列号生成 工具类
 *
 * @author terrfly
+* @author jmdhappy
 * @site https://www.jeepay.vip
 * @date 2021/6/8 16:56
 */
 public class SeqKit {
 
-	private static final AtomicLong BUY_ORDER_SEQ = new AtomicLong(0L);
-	private static final String BUY_ORDER_SEQ_PREFIX = "P";
+	private static final AtomicLong PAY_ORDER_SEQ = new AtomicLong(0L);
+	private static final AtomicLong REFUND_ORDER_SEQ = new AtomicLong(0L);
+	private static final String PAY_ORDER_SEQ_PREFIX = "P";
+	private static final String REFUND_ORDER_SEQ_PREFIX = "R";
 
-	/** 生成购买订单ID **/
+	/** 生成支付订单号 **/
 	public static String genPayOrderId() {
+		return String.format("%s%s%04d",PAY_ORDER_SEQ_PREFIX,
+				DateUtil.format(new Date(), DatePattern.PURE_DATETIME_MS_PATTERN),
+				(int) PAY_ORDER_SEQ.getAndIncrement() % 10000);
+	}
 
-		return String.format("%s%s%04d",BUY_ORDER_SEQ_PREFIX,
+	/** 生成退款订单号 **/
+	public static String genRefundOrderId() {
+		return String.format("%s%s%04d",REFUND_ORDER_SEQ_PREFIX,
 				DateUtil.format(new Date(), DatePattern.PURE_DATETIME_MS_PATTERN),
-				(int) BUY_ORDER_SEQ.getAndIncrement() % 10000);
+				(int) REFUND_ORDER_SEQ.getAndIncrement() % 10000);
 	}
 
 }
diff --git a/jeepay-payment/src/main/java/com/jeequan/jeepay/pay/ctrl/refund/RefundOrderController.java b/jeepay-payment/src/main/java/com/jeequan/jeepay/pay/ctrl/refund/RefundOrderController.java
index d2db673ea493c4434f55ba0e187db14c1e428d28..7b10adba27ae49a3f306263e1bc7cf312fe3e1ee 100644
--- a/jeepay-payment/src/main/java/com/jeequan/jeepay/pay/ctrl/refund/RefundOrderController.java
+++ b/jeepay-payment/src/main/java/com/jeequan/jeepay/pay/ctrl/refund/RefundOrderController.java
@@ -178,7 +178,7 @@ public class RefundOrderController extends ApiController {
 
         Date nowTime = new Date();
         RefundOrder refundOrder = new RefundOrder();
-        refundOrder.setRefundOrderId(SeqKit.genPayOrderId()); //退款订单号
+        refundOrder.setRefundOrderId(SeqKit.genRefundOrderId()); //退款订单号
         refundOrder.setPayOrderId(payOrder.getPayOrderId()); //支付订单号
         refundOrder.setChannelPayOrderNo(payOrder.getChannelOrderNo()); //渠道支付单号
         refundOrder.setMchNo(mchInfo.getMchNo()); //商户号