This paper introduces the graphics dot matrix OLED display module based on the SH1123 drive

and then gives out the hardware interface circuit between the C8051F340 microprocessor and the module. Through a brief analysis of the SH1123 command system

the paper focuses on the realization of the underlying drivers of the module in the C language programming environment. It provides the realization of using keys to control the display menu.The OLED has good display effect and low power. So it is very suitable to the application which human-computer interaction interface shall has good display effect and low power requirements.