As the application of UV lasers is getting closer to life, it has a natural charm in processing technology. With the characteristics of short wavelength, narrow pulse width, fast speed, easy absorption of materials, and high peak value, it has become one of the mainstream industrial lasers. UV laser technology continues to mature, and processing technology has been widely used and popularized. At present, the mainstream marking materials of UV lasers on the market are plastics, glass, ceramics and metals.