▎ 摘　　要

NOVELTY - Preparing porous graphene by laser reduction comprises (i) taking flake graphite as raw material to obtain graphene, and centrifuging to obtain suspension of graphene oxide, (ii) concentrating suspension of graphene oxide into viscous form, and adding hydrogen peroxide solution, (iii) laying mixed viscous liquid on high-temperature resistant or conductive substrate to obtain film, and (iv) subjecting film to lasers reduction and point-by-point scanning under anaerobic environment to obtain porous graphene adhered to the substrate. USE - The method is useful for preparing porous graphene by laser reduction (claimed).