UV laser marking machine belongs to the series of laser marking machines, but it is developed by using 355nm ultraviolet laser. This machine adopts third-order intracavity frequency doubling technology. It greatly reduces the mechanical deformation of the material and has little impact on processing heat, because it is mainly used for ultra-fine marking and engraving, especially suitable for marking food and pharmaceutical packaging materials, drilling micro-holes, high-speed division of glass materials and silicon wafers for complex pattern cutting and other application fields.