diff --git a/platformapi/tiktok/tiktok_const.go b/platformapi/tiktok/tiktok_const.go
index 0970fd10..ebc0ef26 100644
--- a/platformapi/tiktok/tiktok_const.go
+++ b/platformapi/tiktok/tiktok_const.go
@@ -19,7 +19,6 @@ type API struct {
 	client       *http.Client
 	config       *platformapi.APIConfig
 	locker       sync.RWMutex
-
-	msgToken string
-	msgKey   string
+	msgToken     string // accessToken
+	expiresIn    int64  // 过期时间
 }
diff --git a/platformapi/tiktok/tiktok_pay.go b/platformapi/tiktok/tiktok_pay.go
new file mode 100644
index 00000000..14be4a7c
--- /dev/null
+++ b/platformapi/tiktok/tiktok_pay.go
@@ -0,0 +1,89 @@
+package tiktok
+
+import (
+	"crypto/md5"
+	"errors"
+	"fmt"
+	"git.rosy.net.cn/baseapi/utils"
+	"sort"
+	"strings"
+	"time"
+)
+
+const salt = "@#$!18981810340"
+
+// 获取支付签名
+func (a *API) Sign(paramsMap map[string]interface{}) string {
+	var paramsArr []string
+	for k, v := range paramsMap {
+		if k == "other_settle_params" {
+			continue
+		}
+		value := strings.TrimSpace(fmt.Sprintf("%v", v))
+		if strings.HasPrefix(value, "\"") && strings.HasSuffix(value, "\"") && len(value) > 1 {
+			value = value[1 : len(value)-1]
+		}
+		value = strings.TrimSpace(value)
+		if value == "" || value == "nil" {
+			continue
+		}
+		switch k {
+		case "app_id", "thirdparty_id", "sign":
+		default:
+			paramsArr = append(paramsArr, value)
+		}
+	}
+
+	paramsArr = append(paramsArr, salt)
+	sort.Strings(paramsArr)
+	return fmt.Sprintf("%x", md5.Sum([]byte(strings.Join(paramsArr, "&"))))
+}
+
+// 抖音预发单
+func (a *API) CreateOrderByTicktock(param *TickTokCreateOrder) (string, string, error) {
+	param.Sign = a.Sign(utils.Struct2FlatMap(param))
+	data, err := a.AccessAPI2(PayUrl, utils.Struct2FlatMap(param))
+	if err != nil {
+		return "", "", err
+	}
+
+	result := &PreOrderResult{}
+	if err := utils.Map2StructByJson(data, result, false); err != nil {
+		return "", "", err
+	}
+	if result.ErrNo != 0 {
+		return "", "", errors.New(result.ErrTips)
+	}
+	return result.Data.OrderId, result.Data.OrderToken, nil
+}
+
+// 获取抖音token
+func (a *API) GetTiktokToken() error {
+	tokenReq := make(map[string]interface{}, 3)
+	tokenReq["appid"] = a.GetAppID()
+	tokenReq["secret"] = a.GetSecret()
+	tokenReq["grant_type"] = "client_credential"
+	result, err := a.AccessAPI2("https://developer.toutiao.com/api/apps/v2/token", tokenReq)
+	if err != nil {
+		return err
+	}
+
+	accessToken := &AccessToken{}
+	if err := utils.Map2StructByJson(result, accessToken, false); err != nil {
+		return err
+	}
+	if accessToken.ErrNo != 0 {
+		return errors.New(accessToken.ErrTips)
+	}
+	a.msgToken = accessToken.AccessToken
+	a.expiresIn = accessToken.ExpiresIn
+	return nil
+}
+
+// 检查token是否过期
+func (a *API) CheckTokenIsExist() error {
+	if a.msgToken == "" || time.Now().Unix() > a.expiresIn {
+		return a.GetTiktokToken()
+	}
+	return nil
+}
diff --git a/platformapi/tiktok/tiktok_pay_model.go b/platformapi/tiktok/tiktok_pay_model.go
new file mode 100644
index 00000000..98e6c5d5
--- /dev/null
+++ b/platformapi/tiktok/tiktok_pay_model.go
@@ -0,0 +1,47 @@
+package tiktok
+
+const (
+	PayUrl = "https://developer.toutiao.com/api/apps/ecpay/v1/create_order"
+)
+
+// 预下单
+type TickTokCreateOrder struct {
+	AppID       string `json:"app_id"`       // 小程序APPID
+	OutOrderNo  string `json:"out_order_no"` // 开发者侧的订单号
+	TotalAmount int    `json:"total_amount"` // 支付价格。
+	Subject     string `json:"subject"`      // 商品描述。
+	Body        string `json:"body"`         // 商品详情
+	ValidTime   int    `json:"valid_time"`   // 订单过期时间(秒)。
+	Sign        string `json:"sign"`         // 签名，详见请求加签算法
+	CpExtra     string `json:"cp_extra"`     // 开发者自定义字段，回调原样回传
+	NotifyURL   string `json:"notify_url"`   // 商户自定义回调地址
+}
+
+// 预发单返回值
+type PreOrderResult struct {
+	ErrNo   int64  `json:"err_no"`   // 错误码
+	ErrTips string `json:"err_tips"` // 错误信息
+	Data    *struct {
+		OrderId    string `json:"order_id"`    // 抖音侧唯一订单号
+		OrderToken string `json:"order_token"` //签名后的订单信息
+	}
+}
+
+type AccessToken struct {
+	AccessToken string `json:"access_token"` //token
+	ExpiresIn   int64  `json:"expires_in"`   // 过期时间
+	ErrNo       int64  `json:"err_no"`       // 错误码
+	ErrTips     string `json:"err_tips"`     // 错误信息
+}
+
+// 退款
+type ReturnMoneyReq struct {
+	AppID        string `json:"app_id"`        // 小程序APPID
+	OutOrderNo   string `json:"out_order_no"`  //商户分配支付单号，标识进行退款的订单
+	OutRefundNo  string `json:"out_refund_no"` // 商户分配退款号，保证在商户中唯一
+	Reason       string `json:"reason"`        // 退款原因
+	RefundAmount int    `json:"refund_amount"`
+	Sign         string `json:"sign"`
+	CpExtra      string `json:"cp_extra"`
+	NotifyURL    string `json:"notify_url"`
+}
diff --git a/platformapi/tiktok/tiktok_test.go b/platformapi/tiktok/tiktok_test.go
index 18703bcd..705454fa 100644
--- a/platformapi/tiktok/tiktok_test.go
+++ b/platformapi/tiktok/tiktok_test.go
@@ -19,15 +19,15 @@ func init() {
 }
 
 func TestCode(t *testing.T) {
-	a := New("1e0d98ad7b2e9b1ba5d7529a7e17fa9b9d65380a ", "tta6a1d01c399f264201")
-	data, err := a.GetTiktokToken("7aK7VOuXnlU2OIiFDFi_ssRX9vQdXtDekgW-yV77Q20rVsw8-8DX4ASbXMTA3Z-gr8tstJcgMgL04OFc-BgXB92DC6otQV6GQUiy-TzhpH109xZfZwhCKjt-OiI")
-	fmt.Println(err)
-	fmt.Println(data)
+	//a := New("1e0d98ad7b2e9b1ba5d7529a7e17fa9b9d65380a ", "tta6a1d01c399f264201")
+	////data, err := a.GetTiktokToken("7aK7VOuXnlU2OIiFDFi_ssRX9vQdXtDekgW-yV77Q20rVsw8-8DX4ASbXMTA3Z-gr8tstJcgMgL04OFc-BgXB92DC6otQV6GQUiy-TzhpH109xZfZwhCKjt-OiI")
+	//fmt.Println(err)
+	//fmt.Println(data)
 }
 
 func TestCode2(t *testing.T) {
 	a := New("1e0d98ad7b2e9b1ba5d7529a7e17fa9b9d65380a ", "tta6a1d01c399f264201")
-	data, err := a.GetTiktokToken2("CCRHRLfkl8kSHXuuZTDWQayoqHVXF2Vl4qrt173jxfWhg6Q1pZCbjRO0TzTGNPZd5vTW8UcjRupxfmEIdM06WSmAjwhvr-Ak_Pg9gJfHfrq2KvLH5eYL4C68BXM")
+	data, err := a.GetTiktokOauth("CCRHRLfkl8kSHXuuZTDWQayoqHVXF2Vl4qrt173jxfWhg6Q1pZCbjRO0TzTGNPZd5vTW8UcjRupxfmEIdM06WSmAjwhvr-Ak_Pg9gJfHfrq2KvLH5eYL4C68BXM")
 	fmt.Println(err)
 	fmt.Println(data)
 }
diff --git a/platformapi/tiktok/tiktok_token.go b/platformapi/tiktok/tiktok_token.go
index cb2d9aed..f2395f0b 100644
--- a/platformapi/tiktok/tiktok_token.go
+++ b/platformapi/tiktok/tiktok_token.go
@@ -1,7 +1,6 @@
 package tiktok
 
 import (
-	"errors"
 	"git.rosy.net.cn/baseapi/utils"
 )
 
@@ -42,31 +41,8 @@ type TiktokOauthResone struct {
 	}
 }
 
-// 获取抖音token
-func (a *API) GetTiktokToken(code string) (*OauthAccessTokenRes, error) {
-	tokenReq := make(map[string]interface{}, 4)
-	tokenReq["client_secret"] = a.clientSecret
-	tokenReq["code"] = code
-	tokenReq["grant_type"] = "authorization_code"
-	tokenReq["client_key"] = a.clientKey
-
-	result, err := a.AccessAPI2(BaseURL, tokenReq)
-	if err != nil {
-		return nil, err
-	}
-
-	oauthAccessToken := &OauthAccessTokenRes{}
-	if err := utils.Map2StructByJson(result, oauthAccessToken, false); err != nil {
-		return nil, err
-	}
-	if oauthAccessToken.Data.ErrorCode != 0 {
-		return nil, errors.New(oauthAccessToken.Data.Description)
-	}
-	return oauthAccessToken, nil
-}
-
 // 获取抖音登录授权2
-func (a *API) GetTiktokToken2(code string) (*TiktokOauthResone, error) {
+func (a *API) GetTiktokOauth(code string) (*TiktokOauthResone, error) {
 	tokenReq := make(map[string]interface{}, 3)
 	tokenReq["appid"] = a.GetAppID()
 	tokenReq["code"] = code