In order to meet the needs of the rapid development of domestic military planes，and in the light of the main problems existing in current airborne navigation display system, a navigation display system is designed based on the Vxworks and ARM S3C2440. This paper discusses the system design in two aspects i.e. hardware and software. In hardware, the working principle of the overall structure is discussed. And then the working principle of each module of the system hardware and circuit of every module connection are argued. At last, the working principle of the hardware system is analyzed. In the aspect of software, discussion is focused on the technical difficulties of WindML hunan machine interface programming. Optimizing the program code makes the screen more smoothly, and makes the amount of calculation easily, and more realtime. The results show that the Human Machine Interface of display console is simple and intuitive, userfriendly in operation. And this system is low in cost and is wide in application.