diff --git a/common/model/staff_pay_log.go b/common/model/staff_pay_log.go
index c88766c..ed9825f 100644
--- a/common/model/staff_pay_log.go
+++ b/common/model/staff_pay_log.go
@@ -3,6 +3,7 @@ package model
 type StaffPayLog struct {
 	Id         int64
 	StaffId    int64
+	OutTradeNo string
 	PayType    string
 	Amount     int64
 	Title      string
diff --git a/common/model/staff_salary.go b/common/model/staff_salary.go
index 4d5ef8e..b0bd48c 100644
--- a/common/model/staff_salary.go
+++ b/common/model/staff_salary.go
@@ -73,6 +73,10 @@ func (s *StaffSalary) GetBillUrl() string {
 	return billUrl
 }
 
+func (s *StaffSalary) GetOutTradeNo() string {
+	return fmt.Sprintf("SALARY_%d_%s_%d", s.CorpId, s.Month, s.UserId)
+}
+
 type StaffSalarySort []*StaffSalary
 
 func (s StaffSalarySort) Len() int {
diff --git a/server/controller/payment.go b/server/controller/payment.go
index 3ce484d..0e225b7 100644
--- a/server/controller/payment.go
+++ b/server/controller/payment.go
@@ -51,7 +51,7 @@ func (q *Payment) Pay(ctx *gin.Context) {
 	session.CheckDBError(err)
 	session.CheckNilError(user, fmt.Sprintf("用户[%s]不存在", req.Username))
 
-	if err = CommonService.NewPay().Pay(corp, user, req.Title, req.PayType, req.Amount); err != nil {
+	if err = CommonService.NewPay().Pay(corp, user, req.Title, req.PayType, req.Amount, ""); err != nil {
 		panic(config.ErrInternal.New().Append(err))
 	}
 	ctx.JSON(http.StatusOK, session.NewRspOk())
diff --git a/server/service/staff_salary.go b/server/service/staff_salary.go
index dd344d4..d9d818a 100644
--- a/server/service/staff_salary.go
+++ b/server/service/staff_salary.go
@@ -161,7 +161,7 @@ func (s *StaffSalary) Pay(sess *session.AdminSession, req *api.PaySalaryReq) {
 	salary.Status = model.StaffSalaryStatusPayed
 	dao.NewStaffSalaryDao().Update(salary)
 
-	if err = CommonService.NewPay().Pay(corp, user, title, req.PayType, int64(salary.GetRealSalary()*100)); err != nil {
+	if err = CommonService.NewPay().Pay(corp, user, title, req.PayType, int64(salary.GetRealSalary()*100), salary.GetOutTradeNo()); err != nil {
 		panic(config.ErrInternal.New().Append(err))
 	}
 }
diff --git a/server/service/staff_user.go b/server/service/staff_user.go
index 6f26017..f18b4e7 100644
--- a/server/service/staff_user.go
+++ b/server/service/staff_user.go
@@ -210,7 +210,7 @@ func (s *StaffUser) Pay(sess *session.AdminSession, req *api.StaffPayReq) {
 	if req.Title == "" {
 		req.Title = "测试"
 	}
-	if err = CommonService.NewPay().Pay(corp, user, req.Title, req.PayType, cast.ToInt64(req.Amount)); err != nil {
+	if err = CommonService.NewPay().Pay(corp, user, req.Title, req.PayType, cast.ToInt64(req.Amount), ""); err != nil {
 		panic(config.ErrInternal.New().Append(err))
 	}
 }
diff --git a/service/pay.go b/service/pay.go
index f2d9e0f..59e910b 100644
--- a/service/pay.go
+++ b/service/pay.go
@@ -12,8 +12,8 @@ import (
 	log "github.com/sirupsen/logrus"
 	"github.com/smartwalle/alipay/v3"
 	"github.com/smbrave/goutil"
-	"github.com/spf13/cast"
 	"strings"
+	"time"
 )
 
 type Pay struct {
@@ -23,7 +23,10 @@ func NewPay() *Pay {
 	return &Pay{}
 }
 
-func (p *Pay) Pay(corp *model.Corp, user *model.StaffUser, title, payType string, amount int64) error {
+func (p *Pay) Pay(corp *model.Corp, user *model.StaffUser, title, payType string, amount int64, outTradeNo string) error {
+	if outTradeNo == "" {
+		outTradeNo = fmt.Sprintf("%d_%s_%s", corp.Id, time.Now().Format("200601020304"), user.Id)
+	}
 	var err error
 	realPayType := ""
 	payee := user.GetPayee()
@@ -31,10 +34,10 @@ func (p *Pay) Pay(corp *model.Corp, user *model.StaffUser, title, payType string
 		if payee.AlipayUid == "" {
 			panic("请绑定支付宝账号")
 		}
-		err = p.payAlipay(corp, user, title, amount)
+		err = p.payAlipay(corp, user, title, amount, outTradeNo)
 		realPayType = "alipay"
 	} else {
-		err = p.payWeixin(corp, user, title, amount)
+		err = p.payWeixin(corp, user, title, amount, outTradeNo)
 		realPayType = "weixin"
 	}
 
@@ -62,13 +65,13 @@ func (p *Pay) Pay(corp *model.Corp, user *model.StaffUser, title, payType string
 	return nil
 }
 
-func (p *Pay) payAlipay(corp *model.Corp, user *model.StaffUser, title string, amount int64) error {
+func (p *Pay) payAlipay(corp *model.Corp, user *model.StaffUser, title string, amount int64, outTradeNo string) error {
 	corpConfig := corp.GetConfig()
 	userPayee := user.GetPayee()
 	cli := config.GetAliPayClient(goutil.If(corpConfig.PayChannel != "", corpConfig.PayChannel, "batiao"))
 	var payReq alipay.FundTransUniTransfer
 	payReq.Remark = title
-	payReq.OutBizNo = cast.ToString(goutil.GetBigID(0, 0))
+	payReq.OutBizNo = outTradeNo
 	payReq.TransAmount = goutil.FormatMoney(amount)
 	payReq.ProductCode = "TRANS_ACCOUNT_NO_PWD"
 	payReq.BizScene = "DIRECT_TRANSFER"
@@ -89,7 +92,7 @@ func (p *Pay) payAlipay(corp *model.Corp, user *model.StaffUser, title string, a
 	return nil
 }
 
-func (p *Pay) payWeixin(corp *model.Corp, user *model.StaffUser, title string, amount int64) error {
+func (p *Pay) payWeixin(corp *model.Corp, user *model.StaffUser, title string, amount int64, outTradeNo string) error {
 
 	cfg := corp.GetConfig()
 
@@ -107,7 +110,7 @@ func (p *Pay) payWeixin(corp *model.Corp, user *model.StaffUser, title string, a
 
 	// 支付费用
 	var payReq qyweixin.PayReq
-	payReq.BillNo = cast.ToString(goutil.GetBigID(0, 0))
+	payReq.BillNo = outTradeNo
 	payReq.Title = title
 	payReq.Openid = openid
 	payReq.TotalAmount = amount
diff --git a/worker/staff.go b/worker/staff.go
index 263ac09..0bdc36e 100644
--- a/worker/staff.go
+++ b/worker/staff.go
@@ -131,7 +131,11 @@ func (s *Staff) PayStaffSalary(corpId int64, month string) {
 		message = append(message, fmt.Sprintf(`<a href="%s">查看明细</a>`, staffSalary.GetBillUrl()))
 
 		if staffUser.Username == "jiangyong" {
-			err = service.NewPay().Pay(corp, staffUser, fmt.Sprintf("[%s]工资", staffSalary.Month), model.StaffSalaryPaymentAlipay, int64(100*staffSalary.GetRealSalary()))
+			err = service.NewPay().Pay(corp, staffUser,
+				fmt.Sprintf("[%s]工资", staffSalary.Month),
+				model.StaffSalaryPaymentAlipay,
+				int64(100*staffSalary.GetRealSalary()),
+				staffSalary.GetOutTradeNo())
 			if err == nil {
 				staffSalary.Status = model.StaffSalaryStatusPayed
 				message = append(message, "发放成功")