diff --git a/UI/UI_ExpertMode.c b/UI/UI_ExpertMode.c
index 1504a79..5f19748 100644
--- a/UI/UI_ExpertMode.c
+++ b/UI/UI_ExpertMode.c
@@ -6,7 +6,10 @@ void UI_ExpertMode_Init(void)
     mGuiData[GUI_TAB_LAST_INDEX].Current = mGuiData[GUI_TAB_INDEX].Current;
     //mGuiData[GUI_AUTOBAND_SW].Current = 1;
     UI_ReloadTonePreset(); /* 必须在 TAB=专业 之后换库，否则仍是万能 3.bin */
-    Show_home_UI();
+    if (CurrUIProcress == UI_SongMode_Process)
+        Show_home_UI_Diff();
+    else
+        Show_home_UI();
     pCurrentTouch_Area = Touch_Areas;
 }
 
diff --git a/UI/UI_FreeMode.c b/UI/UI_FreeMode.c
index 4fcfa6f..afe2d14 100644
--- a/UI/UI_FreeMode.c
+++ b/UI/UI_FreeMode.c
@@ -7,7 +7,10 @@ void UI_FreeMode_Init(void)
     mGuiData[GUI_TAB_LAST_INDEX].Current = mGuiData[GUI_TAB_INDEX].Current;
     //mGuiData[GUI_AUTOBAND_SW].Current = 1;
     UI_ReloadTonePreset(); /* TAB=普通 后再加载 1.bin */
-    Show_home_UI();
+    if (CurrUIProcress == UI_SongMode_Process)
+        Show_home_UI_Diff();
+    else
+        Show_home_UI();
     pCurrentTouch_Area = Touch_Areas;
 }
 
diff --git a/UI/UI_SongMode.c b/UI/UI_SongMode.c
index ac9138e..6ba6527 100644
--- a/UI/UI_SongMode.c
+++ b/UI/UI_SongMode.c
@@ -68,6 +68,21 @@ void Show_home_UI(void)
 	//LCD_BLK_Set();
 }
 
+/* 三模式主页互切：只重绘变化区，避免整屏清导致闪烁 */
+void Show_home_UI_Diff(void)
+{
+	const LEBEL_UI *mode = &UI_Label[GUI_MODE_PARAM];
+
+	UI_ClearFocus();
+	/* 清 TAB/标题条，避免万能↔普通/专业互切留下残影 */
+	LCD_FillByColor(mode->x, mode->y,
+	                (uint16_t)(mode->x + mode->w),
+	                (uint16_t)(mode->y + UI0902_TAB_H + 4),
+	                UI0902_BG_COLOR);
+	label_ModeSelece_ui(mode, &mGuiData[GUI_MODE_PARAM]);
+	label_Tab_Select_ui(&UI_Label[GUI_PLAY_SECTION], &mGuiData[GUI_TAB_INDEX]);
+}
+
 int8_t delta = 0;
 void Touch_Action(int8_t FLAG, uint8_t ID, uint8_t areaIndex,uint8_t value)
 {
@@ -280,7 +295,11 @@ void UI_SongMode_Init(void)
   mGuiData[GUI_TAB_INDEX].Current = 0;
   mGuiData[GUI_TAB_LAST_INDEX].Current = mGuiData[GUI_TAB_INDEX].Current;
   UI_ReloadTonePreset(); /* TAB=万能 后再加载 3.bin */
-  Show_home_UI();
+  /* 已在主页互切用差分；从 Idle/设置进入仍整页 */
+  if (CurrUIProcress == UI_SongMode_Process)
+    Show_home_UI_Diff();
+  else
+    Show_home_UI();
   pCurrentTouch_Area = Touch_Areas;
 
 }
diff --git a/UI/UI_global.h b/UI/UI_global.h
index 8a59db6..0101d83 100644
--- a/UI/UI_global.h
+++ b/UI/UI_global.h
@@ -208,6 +208,7 @@ void GET_Num_Str(int16_t NUM, uint8_t ValidLen, char* Str, uint8_t hasSign);
 void show_Param(const LEBEL_UI *UI, GUI_SWITCH *Group);
 
 extern void Show_home_UI(void);
+extern void Show_home_UI_Diff(void);
 extern void Touch_Action(int8_t FLAG, uint8_t ID, uint8_t areaIndex, uint8_t value);
 //extern void Refresh_Transpose(uint8_t last_data, const LEBEL_UI *UI, GUI_SWITCH *Group);
 extern void Refresh_Transpose(const LEBEL_UI *UI, GUI_SWITCH * Group);