▎ 摘　　要

NOVELTY - A method for preparing laser-induced graphene, comprising providing a substrate; and adjusting a laser light source and a far-infrared auxiliary light source to irradiate the substrate, and further forming a laser light-induced graphene on a surface of the substrate. By combining the technical features of the method with the far-infrared auxiliary light source, the present invention can effectively improve the defect and the electrical properties of the laser-induced graphene.