diff --git a/platformapi/dadaapi/notify.go b/platformapi/dadaapi/notify.go
new file mode 100644
index 00000000..0333b88c
--- /dev/null
+++ b/platformapi/dadaapi/notify.go
@@ -0,0 +1,58 @@
+package dadaapi
+
+import "git.rosy.net.cn/baseapi/utils"
+
+const (
+	MessageTypeRidderCancel = 1
+)
+
+type RidderCancelNotify struct {
+	OrderID      string `json:"orderId"`
+	DadaOrderID  int64  `json:"dadaOrderId"`
+	CancelReason string `json:"cancelReason"`
+}
+
+type RidderCancelConfirm struct {
+	OrderID     string `json:"orderId"`
+	DadaOrderID int64  `json:"dadaOrderId"`
+	IsConfirm   int    `json:"isConfirm"`
+}
+
+type NotifyMsg struct {
+	MessageType int    `json:"messageType"`
+	MessageBody string `json:"messageBody"`
+	CreateTime  int64  `json:"createTime"`
+
+	MessageObj *RidderCancelNotify `json:"messageObj"`
+}
+
+type NotifyResponse struct {
+	Status string `json:"status"`
+}
+
+var (
+	SuccessNotifyResponse = &NotifyResponse{Status: "ok"}
+	FailedNotifyResponse  = &NotifyResponse{Status: "fail"}
+)
+
+func (a *API) GetNotifyMsg(data []byte) (msg *NotifyMsg, notifyResponse *NotifyResponse) {
+	err := utils.UnmarshalUseNumber(data, &msg)
+	if err == nil {
+		err = utils.UnmarshalUseNumber([]byte(msg.MessageBody), &msg.MessageObj)
+	}
+	if err != nil {
+		notifyResponse = FailedNotifyResponse
+	}
+	return msg, notifyResponse
+}
+
+// 消息确认
+// http://newopen.imdada.cn/#/development/file/merchantConfirm?_k=gqkja3
+func (a *API) ConfirmRidderCancel(orderID string, dadaOrderID int64, isConfirm bool) (err error) {
+	_, err = a.AccessAPI("message/confirm", utils.Struct2FlatMap(&RidderCancelConfirm{
+		OrderID:     orderID,
+		DadaOrderID: dadaOrderID,
+		IsConfirm:   utils.Bool2Int(isConfirm),
+	}))
+	return err
+}