▎ 摘　　要

NOVELTY - Preparing graphene materials by laser-induced industrial hemp comprises using industrial hemp as material including carbon precursor, and using laser irradiation to induce carbon precursor to be converted into graphene to prepare graphene material, which specifically includes (1) preparing industrial hemp into materials including carbon precursors, (2) carbonizing industrial hemp materials, and (3) performing laser-induced graphene on industrial hemp materials by means of laser scanning to prepare graphene materials. USE - The method is useful for preparing graphene materials by laser-induced industrial hemp. ADVANTAGE - The method: realizes preparation of graphene, graphene quantum dots, graphene mesoporous materials and other graphene composite materials; utilizes green and environmentally friendly raw materials; is simple and efficient; has low production cost; and is suitable for mass production of various graphene materials.