The interaction of laser with the material, according to certain requirements of the processing or molding, collectively called laser manufacturing. Laser manufacturing technology has penetrated into high-tech fields, and begun to replace or transform traditional processing industry in recent 20 years. In the automotive industry of the developed countries, 50% -70% of the parts are processed using laser processing. Laser manufacturing technology is more and more important in improving the R & D and manufacturing level of the automotive industry.