Laser marking machine uses laser beam to make permanent marks on the surfaces of various substances. The effect of marking is to expose the deep substance through the evaporation of the surface substance, thus carving exquisite patterns, trademarks and words. Laser marking machines are mainly divided into CO2 laser marking machines, semiconductor laser marking machines, fiber laser marking machine and YAG laser marking machines. At present, laser marking machines are mainly used in some occasions that require more precision and higher precision. Used in electronic components, integrated circuits (ic), electrical appliances, mobile phone communication, hardware products, tool parts, precision instruments, glasses and clocks, jewelry, auto parts, plastic buttons, building materials and PVC pipes.

Laser marking is to make permanent marks on the surfaces of various substances with a laser beam. The function of marking is to expose deep substances through evaporation of surface substances, or to "carve" traces through chemical and physical changes of surface substances caused by light energy, or to display patterns and characters to be etched through burning some substances by light energy.