diff --git a/main/app_main.cpp b/main/app_main.cpp
index a8ff638..367e1ab 100644
--- a/main/app_main.cpp
+++ b/main/app_main.cpp
@@ -55,7 +55,7 @@ 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_press_down_time = 0,
+    .key_press_down_keep_time = 0,
 };
 
 /***********************************************************************************************************************
diff --git a/main/key.c b/main/key.c
index 6fe659c..d8695fc 100644
--- a/main/key.c
+++ b/main/key.c
@@ -36,22 +36,40 @@ void T_key_on_event(void)
 
 void T_key_schedule(void)
 {
+    static uint32_t key_start_press_down_time = 0;
     T_key_structer_s->key_now_state = T_key_get_level();
     /* 检查是否盖上盖 */
     if (cover_get_level())
     {
+        /* 上升沿 */
         if ((T_key_structer_s->key_before_state != T_key_structer_s->key_now_state) && (T_key_structer_s->key_now_state == true))
         {
-            short_press_event_cb_s();
-            T_key_structer_s->key_start_press_down_time = port_get_ticket();
+            if (T_key_structer_s->key_press_down_keep_time != 0)
+            {
+                T_key_structer_s->key_press_down_keep_time = 0;
+            }
+            key_start_press_down_time = port_get_ticket();
         }
 
-        if (T_key_structer_s->key_now_state)
+        /* 下降沿 */
+        if ((T_key_structer_s->key_before_state != T_key_structer_s->key_now_state) && (T_key_structer_s->key_now_state == false))
         {
-            if (port_get_ticket() - T_key_structer_s->key_start_press_down_time > key_long_press_time_ms)
+            T_key_structer_s->key_press_down_keep_time = port_get_ticket() - key_start_press_down_time;
+        }
+
+        /* 20ms消抖 */
+        if ((T_key_structer_s->key_press_down_keep_time > 20) && (key_start_press_down_time != 0))
+        {
+            if (T_key_structer_s->key_press_down_keep_time < 500)
+            {
+                short_press_event_cb_s();
+            }
+            else if (T_key_structer_s->key_press_down_keep_time >= 3000)
             {
                 long_press_event_cb_s();
             }
+            key_start_press_down_time = 0;
+            T_key_structer_s->key_press_down_keep_time = 0;
         }
     }
     else
diff --git a/main/key.h b/main/key.h
index 48af8d5..8bbd498 100644
--- a/main/key.h
+++ b/main/key.h
@@ -7,7 +7,7 @@ typedef struct
 {
     bool key_before_state;
     bool key_now_state;
-    uint32_t key_start_press_down_time;
+    uint32_t key_press_down_keep_time;
 } T_key_structer_t;
 
 typedef bool (*key_camera_cb)(void);