Metal colorful marking system and marking method

The invention relates to the technical field of laser processing, in particular to a metal colorful marking system and a marking method. The metal colorful marking system comprises a processing platform, an optical fiber laser, a vibrating galvanometer, a lens and a marking control system. The processing platform is used for placing a metal sample; the optical fiber laser is used for emitting laser beams; the vibrating galvanometer is used for controlling deviation of the laser beams; the lens is used for focusing the laser beams to the surface of the metal sample; the marking control system is used for controlling emission of laser and the emitting parameters as well scanning parameters of the vibrating galvanometer. The metal colorful marking system provided by the invention can controlemission of laser and adjust the emitting parameters of laser as well as the scanning parameters of the vibrating galvanometer; by adjusting and combining the parameters, oxidizing films of differentthicknesses can be formed