On the basis of studying FANUC PICTURE powerful graphic display and mapping functions，the elliptical bore machining manmachine interface development based on FANUC PICTURE was proposed. According to the manmachine interface development method，the elliptical inner hole processing manmachine interface was developed. Comparing with macro manual programming，CAD/CAM software programming，the results show that using elliptical hole humanmachine interface,the programming time is shortened greatly, its programming efficiency is about 40% higher than that of macro program, it is 1.5 times than CAD/CAM software program.It provides reference for the development of other complex surface human-machine interfaces.