本文详细介绍了基于51单片机的LED显示屏控制系统的显示原理，对16*16点阵汉字进行显示，显示屏由4个8*8的LED点阵模块组成一个16*16点阵LED。系统仿真利用PORTEUS仿真软件和KEIL软件的联调对LED点阵显示屏系统进行调试。-This paper describes the 51-based single-chip LED display control system shows the principle of the Chinese characters for 16* 16 dot matrix display, the display consists of four 8 x 8 LED dot matrix modules to form a 16* 16 dot matrix LED. System simulation using simulation software and KEIL software PORTEUS the FBI on the LED dot matrix display system for debugging.