diff --git a/UI/UI_global.c b/UI/UI_global.c
index a30c633..a465dfc 100644
--- a/UI/UI_global.c
+++ b/UI/UI_global.c
@@ -1126,6 +1126,10 @@ void Draw_System_Item_List(const LEBEL_UI *UI, GUI_SWITCH *Group)
 	uint16_t val_x2 = UI->x + row_w - 18;
 	uint16_t chev_cy = UI->y + UI->h / 2;
 
+	/* 先清整块外接矩形为页面底色，避免焦点蓝圆角残留四角描边 */
+	LCD_FillByColor(UI->x, UI->y, (uint16_t)(UI->x + row_w), (uint16_t)(UI->y + UI->h),
+	                UI0902_BG_COLOR);
+
 	if (UI_IsFocused(Group->Id))
 	{
 		c_top = START_COLOR;