diff --git a/doc/wechat_v3.md b/doc/wechat_v3.md
index f89a49fb..91b74032 100644
--- a/doc/wechat_v3.md
+++ b/doc/wechat_v3.md
@@ -391,7 +391,9 @@ wechat.V3DecryptScoreNotifyCipherText()
     * 查询申请单状态（BusinessCode）：`client.V3Apply4SubQueryByBusinessCode()`
     * 查询申请单状态（ApplyId）：`client.V3Apply4SubQueryByApplyId()`
     * 修改结算账号：`client.V3Apply4SubModifySettlement()`
+    * 修改结算账号(新)：`client.V3AsyncApply4SubModifySettlement()`
     * 查询结算账户：`client.V3Apply4SubQuerySettlement()`
+    * 查询结算账户修改申请状态：`client.V3Apply4SubMerchantsApplication()`
 * <font color='#07C160' size='4'>点金计划（服务商）</font>
     * 点金计划管理：`client.V3GoldPlanManage()`
     * 商家小票管理：`client.V3GoldPlanBillManage()`
diff --git a/wechat/v3/applyment_for_sub.go b/wechat/v3/applyment_for_sub.go
index d056876a..613acfd5 100644
--- a/wechat/v3/applyment_for_sub.go
+++ b/wechat/v3/applyment_for_sub.go
@@ -183,7 +183,7 @@ func (c *ClientV3) V3Apply4SubQuerySettlement(ctx context.Context, subMchId stri
 
 // 查询结算账户修改申请状态 API
 // Code = 0 is success
-// 文档：https://pay.weixin.qq.com/docs/partner/apis/modify-settlement/sub-merchants/modify-settlement.html
+// 文档：https://pay.weixin.qq.com/docs/partner/apis/modify-settlement/sub-merchants/get-application.html
 func (c *ClientV3) V3Apply4SubMerchantsApplication(ctx context.Context, subMchId, applicationNo string) (*V3Apply4SubMerchantsApplicationRsp, error) {
 	uri := fmt.Sprintf(v3Apply4SubMerchantsApplication, subMchId, applicationNo)
 	authorization, err := c.authorization(MethodGet, uri, nil)