diff --git a/const.go b/const.go
new file mode 100644
index 0000000..81e597a
--- /dev/null
+++ b/const.go
@@ -0,0 +1,7 @@
+package notification
+
+const (
+	SortOrderDesc = "-order"
+	SortOrderAsc  = "order"
+	SortDefault   = "-lastPushAt"
+)
diff --git a/model.go b/model.go
index c31e912..1db232f 100644
--- a/model.go
+++ b/model.go
@@ -17,7 +17,8 @@ type PushRequest struct {
 	Label    string   `json:"label,omitempty"`
 	Category string   `json:"category,omitempty"`
 	Sound    *Sound   `json:"sound,omitempty"`
-	Link     string   `json:"link"` // for webpush
+	Link     string   `json:"link"`  // for webpush
+	Order    int      `json:"order"` // for sort
 }
 
 // Sound ...
@@ -45,6 +46,7 @@ type Query struct {
 	Status   string `json:"status"`
 	Page     int64  `json:"page,omitempty"`
 	Limit    int64  `json:"limit,omitempty"`
+	Sort     string `json:"sort,omitempty"` // SortDefault, SortOrderDesc, SortOrderAsc
 }
 
 type query struct {