an important measure to process workpiece in precision, which plays an important role in modern society. The high-precision grinding machine is equipped with programmed control system. It is an elec-mechanic processing equipment which can process automatically by the use of digital information. Through half a century%27s development, grinding machine has become one of the most important marks In modern manufacturing area. After extruding and finishing machining exerted by ultrasonic technology, the metal surface roughness minished and the metal surface layer strengthened.