diff --git a/otosaas/callback.go b/otosaas/callback.go
new file mode 100644
index 0000000..bb68a2e
--- /dev/null
+++ b/otosaas/callback.go
@@ -0,0 +1,29 @@
+package otosaas
+
+import (
+	"context"
+	"git.oa00.com/supply-chain/service/client"
+)
+
+type callback struct {
+}
+
+// OtoSaas @Title 海旅回调
+func (c *category) OtoSaas(ctx context.Context, args string) (reply string, err error) {
+	xClient, err := client.GetClient(c)
+	if err != nil {
+		return
+	}
+	err = xClient.Call(ctx, "OtoSaas", args, &reply)
+	return
+}
+
+// Kuaidi100 @Title 快递100回调
+func (c *category) Kuaidi100(ctx context.Context, args string) (reply string, err error) {
+	xClient, err := client.GetClient(c)
+	if err != nil {
+		return
+	}
+	err = xClient.Call(ctx, "Kuaidi100", args, &reply)
+	return
+}
diff --git a/otosaas/otosaas.go b/otosaas/otosaas.go
index 92ab618..17885e8 100644
--- a/otosaas/otosaas.go
+++ b/otosaas/otosaas.go
@@ -1,6 +1,7 @@
 package otosaas
 
 type OtoSaas struct {
+	Callback  callback
 	Category  category
 	Commodity commodity
 }