diff --git a/bot.go b/bot.go
index d723551..1e56bee 100644
--- a/bot.go
+++ b/bot.go
@@ -18,6 +18,8 @@ type Bot struct {
 	Debug bool `json:"debug"`
 	// Handler 注册对各种事件的处理
 	Handler Handler
+	// handlers 方便调用的 handler
+	handlers map[string]GeneralHandleType
 }
 
 // Start clients without blocking
diff --git a/client.go b/client.go
index ae80db8..fad2c48 100644
--- a/client.go
+++ b/client.go
@@ -2,7 +2,9 @@ package rei
 
 import (
 	"log"
+	"reflect"
 	"time"
+	"unsafe"
 
 	tgba "github.com/go-telegram-bot-api/telegram-bot-api/v5"
 )
@@ -16,6 +18,19 @@ type TelegramClient struct {
 // NewTelegramClient ...
 func NewTelegramClient(c *Bot) (tc TelegramClient) {
 	tc.b = *c
+	h := reflect.ValueOf(&tc.b.Handler).Elem()
+	t := h.Type()
+	tc.b.handlers = make(map[string]GeneralHandleType, 16)
+	for i := 0; i < h.NumField(); i++ {
+		f := h.Field(i)
+		if f.IsZero() {
+			continue
+		}
+		tp := t.Field(i).Name[2:]
+		log.Println("[INFO] register handler", tp)
+		handler := f.Interface()
+		tc.b.handlers[tp] = *(*GeneralHandleType)(unsafe.Add(unsafe.Pointer(&handler), unsafe.Sizeof(uintptr(0))))
+	}
 	return
 }
 
diff --git a/event.go b/event.go
index 5160e3f..04fd8e5 100644
--- a/event.go
+++ b/event.go
@@ -3,7 +3,6 @@ package rei
 import (
 	"log"
 	"reflect"
-	"unsafe"
 
 	tgba "github.com/go-telegram-bot-api/telegram-bot-api/v5"
 )
@@ -21,18 +20,17 @@ type Event struct {
 func (tc *TelegramClient) processEvent(update tgba.Update) {
 	v := reflect.ValueOf(&update).Elem()
 	t := reflect.ValueOf(&update).Elem().Type()
-	h := reflect.ValueOf(tc.b.Handler)
 	for i := 1; i < v.NumField(); i++ {
 		f := v.Field(i)
 		if f.IsZero() {
 			continue
 		}
-		m := h.FieldByName("On" + t.Field(i).Name)
-		if m.IsZero() {
+		tp := t.Field(i).Name
+		h, ok := tc.b.handlers[tp]
+		if !ok {
 			continue
 		}
-		log.Println("[INFO] processEvent call", "On"+t.Field(i).Name)
-		handler := m.Interface()
-		go (*(*GeneralHandleType)(unsafe.Add(unsafe.Pointer(&handler), unsafe.Sizeof(uintptr(0)))))(update.UpdateID, tc, f.UnsafePointer())
+		log.Println("[INFO] process", tp, "event")
+		go h(update.UpdateID, tc, f.UnsafePointer())
 	}
 }