Laser cleaning, as an emerging cleaning method, belongs to the high-tech field supported by the state. It is different from traditional cleaning methods. It is a "green" cleaning technology, environmentally friendly and pollution-free, and harmless to humans and the environment. The laser first carbonizes the stains on the surface of the object to be cleaned, making it unable to adhere to the surface of the metal, turning it into a granular object, and then recycling it in the dust cleaning device of the laser cleaning machine, which will never cause secondary pollution. The recovered carbonization After the work is finished, there is no need to deal with it. Moreover, the pickling solution is easy to volatilize. If the volatilized gas is in contact with the human body for a long time, it will cause certain damage to the human body. Laser cleaning does not produce any dust and pollutants, and you do not need to wear protective equipment when working. The development of laser cleaning technology has a very important strategic significance for the substantial improvement of China's high-end laser manufacturing technology and equipment's international competitiveness and economic and social development.