diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/Order.java b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/Order.java
index 5f18b00..4ea0d8f 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/Order.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/Order.java
@@ -25,4 +25,12 @@ public interface Order {
      */
     Object getAttr(String key);
 
+
+    /**
+     * 添加订单信息
+     * @param key key
+     * @param value 值
+     */
+    void addAttr(String key, Object value);
+
 }
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/PayOrder.java b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/PayOrder.java
index 1982763..76a3451 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/PayOrder.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/PayOrder.java
@@ -277,6 +277,7 @@ public class PayOrder implements Order {
      * @param key key
      * @param value 值
      */
+    @Override
     public void addAttr(String key, Object value) {
         getAttrs().put(key, value);
     }
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/RefundOrder.java b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/RefundOrder.java
index b8bce56..62b8089 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/RefundOrder.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/RefundOrder.java
@@ -2,6 +2,8 @@ package com.egzosn.pay.common.bean;
 
 import java.math.BigDecimal;
 import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
 
 /**
  * 退款订单信息
@@ -11,7 +13,7 @@ import java.util.Date;
  *      date 2018/1/15 21:40
  *   </pre>
  */
-public class RefundOrder {
+public class RefundOrder implements Order {
     /**
      * 退款单号，每次进行退款的单号，此处唯一
      */
@@ -51,6 +53,11 @@ public class RefundOrder {
      */
     private String userId;
 
+    /**
+     * 订单附加信息，可用于预设未提供的参数，这里会覆盖以上所有的订单信息，
+     */
+    private Map<String, Object> attr;
+
     public String getRefundNo() {
         return refundNo;
     }
@@ -147,5 +154,27 @@ public class RefundOrder {
         this.totalAmount = totalAmount;
     }
 
+    @Override
+    public Map<String, Object> getAttrs() {
+        if (null == attr){
+            attr = new HashMap<>();
+        }
+        return attr;
+    }
 
+    @Override
+    public Object getAttr(String key) {
+        return getAttrs().get(key);
+    }
+
+
+    /**
+     * 添加订单信息
+     * @param key key
+     * @param value 值
+     */
+    @Override
+    public void addAttr(String key, Object value) {
+        getAttrs().put(key, value);
+    }
 }
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/TransferOrder.java b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/TransferOrder.java
index 83f05b8..bd3ecbb 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/TransferOrder.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/TransferOrder.java
@@ -217,6 +217,7 @@ public class TransferOrder implements Order {
      * @param key key
      * @param value 值
      */
+    @Override
     public void addAttr(String key, Object value) {
         getAttrs().put(key, value);
     }
diff --git a/pay-java-union/src/test/java/PayTest.java b/pay-java-union/src/test/java/PayTest.java
index f64b70b..ff2f114 100644
--- a/pay-java-union/src/test/java/PayTest.java
+++ b/pay-java-union/src/test/java/PayTest.java
@@ -93,7 +93,7 @@ public class PayTest {
 
         /*-----------退货交易：后台资金类交易，有同步应答和后台通知应答------------------------------*/
         payOrder.setTransactionType(UnionTransactionType.REFUND);
-        params =   service.refund("原交易查询流水号", "订单号", null,new BigDecimal("退款金额" ));
+        params =   service.refund(new RefundOrder("原交易查询流水号", "订单号", null, new BigDecimal("退款金额" )));
         /*-----------退货交易：后台资金类交易，有同步应答和后台通知应答------------------------------*/