diff --git a/docs/changes.md b/docs/changes.md
index ce9847096..26d9ebc49 100644
--- a/docs/changes.md
+++ b/docs/changes.md
@@ -5,6 +5,7 @@
   * 修复拼写错误(感谢兆坤提供补丁)
   * edit_ex 增加奇数项和偶数项的样式设置(感谢兆坤提供补丁)
   * 完善 conf_ubjson (感谢林福提供补丁)
+  * 修改lcd_mem_flush里面拷贝逻辑，应该是按照online的脏矩形拷贝才对态(感谢智明提供补丁)
 
 2025/02/14
   * endian类增加了小端的支持和修改了注释（增加测试用例）(感谢智明提供补丁)
diff --git a/src/lcd/lcd_mem.inc b/src/lcd/lcd_mem.inc
index 8794b5bc5..24843dd39 100644
--- a/src/lcd/lcd_mem.inc
+++ b/src/lcd/lcd_mem.inc
@@ -602,7 +602,7 @@ static ret_t lcd_mem_flush(lcd_t* lcd) {
   const dirty_rects_t* dirty_rects;
   lcd_mem_t* mem = (lcd_mem_t*)lcd;
   system_info_t* info = system_info();
-  uint8_t* fb = lcd_mem_get_offline_fb(mem);
+  uint8_t* fb = lcd_mem_get_online_fb(mem);
   lcd_orientation_t o = info->lcd_orientation;
 
   lcd_mem_init_drawing_fb(lcd, &offline_fb);
@@ -649,6 +649,7 @@ static ret_t lcd_mem_flush(lcd_t* lcd) {
       }
     }
   }
+  lcd_fb_dirty_rects_reset_dirty_rects_by_fb(&(mem->fb_dirty_rects_list), fb);
   return RET_OK;
 }