diff --git a/main/app_main.cpp b/main/app_main.cpp
index b7f8d93..f7740a0 100644
--- a/main/app_main.cpp
+++ b/main/app_main.cpp
@@ -49,6 +49,7 @@ wifi_state_light_structer_t wifi_state_light_structer = {
 T_key_structer_t T_key_structer = {
     .key_before_state = false,
     .key_now_state = false,
+    .key_start_time = 0,
 };
 
 /***********************************************************************************************************************
@@ -102,6 +103,10 @@ void process_key_event(void)
     }
 }
 
+void process_key_long_press_event(void)
+{
+}
+
 void T_reaction_schedule(void)
 {
     if (reaction_structer.reaction_start_flag)
@@ -127,7 +132,7 @@ extern "C" void app_main(void)
     cover_init();
     beep_init();
 
-    T_key_registered_cb(process_key_event);
+    T_key_registered_cb(process_key_event, process_key_long_press_event);
     T_wifi_registered_cb();
     T_heating_plate_registered_cb(T_temp_get_data);
 
diff --git a/main/key.c b/main/key.c
index 678ca0d..4236743 100644
--- a/main/key.c
+++ b/main/key.c
@@ -10,19 +10,23 @@
  */
 
 #include "key.h"
+#include "port.h"
+
+#define key_long_press_time_ms 5000
 
 static T_key_structer_t *T_key_structer_s;
-static key_event_cb event_cb_s;
+static key_event_cb short_press_event_cb_s;
+static key_event_cb long_press_event_cb_s;
 
 void T_key_init(T_key_structer_t *T_key_structer)
 {
     T_key_structer_s = T_key_structer;
 }
 
-void T_key_registered_cb(key_event_cb event_cb)
+void T_key_registered_cb(key_event_cb short_press_event_cb, key_event_cb long_press_event_cb)
 {
-
-    event_cb_s = event_cb;
+    short_press_event_cb_s = short_press_event_cb;
+    long_press_event_cb_s = long_press_event_cb;
 }
 
 void T_key_on_event(void)
@@ -34,8 +38,18 @@ void T_key_schedule(void)
     T_key_structer_s->key_now_state = T_key_get_level();
     if ((T_key_structer_s->key_before_state != T_key_structer_s->key_now_state) && (T_key_structer_s->key_now_state == true))
     {
-        event_cb_s();
+        short_press_event_cb_s();
+        T_key_structer_s->key_start_time = port_get_ticket();
+    }
+
+    if (T_key_structer_s->key_now_state)
+    {
+        if (port_get_ticket() - T_key_structer_s->key_start_time > key_long_press_time_ms)
+        {
+            long_press_event_cb_s();
+        }
     }
+
     T_key_structer_s->key_before_state = T_key_structer_s->key_now_state;
 }
 
diff --git a/main/key.h b/main/key.h
index e7dc715..cfa918c 100644
--- a/main/key.h
+++ b/main/key.h
@@ -1,18 +1,20 @@
 #pragma once
 
-#include "stdbool.h"
+#include <stdbool.h>
+#include <stdint.h>
 
 typedef struct
 {
     bool key_before_state;
     bool key_now_state;
+    uint32_t key_start_time;
 } T_key_structer_t;
 
 typedef bool (*key_camera_cb)(void);
 typedef void (*key_event_cb)(void);
 
 void T_key_init(T_key_structer_t *T_key_structer);
-void T_key_registered_cb(key_event_cb event_cb);
+void T_key_registered_cb(key_event_cb short_press_event_cb, key_event_cb long_press_event_cb);
 void T_key_on_event(void);
 void T_key_schedule(void);
 bool T_key_get_level(void);
\ No newline at end of file