The history of precision cnc turning parts has experienced more than half a century, the cnc turning parts system has developed from the earliest analog signal circuit control into an extremely complex integrated processing system, programming methods have also developed into intelligent, powerful CAD/CAM integrated system manually. As far as our country is concerned, the development of precision cnc turning parts is relatively slow, for most of the domestic workshop. The equipment is relatively backward, and the technical level and concept of personnel lag behind for the processing quality and processing efficiency is low, and the delivery time is often delayed.