▎ 摘　　要

NOVELTY - Method for preparing a graphene, involves (i) adding graphite powder to precooled cellulose solution, ultrasonically stripping to obtain cellulose graphene dispersion, and (ii) removing the cellulose polymer from cellulose graphene dispersion and drying to obtain the product. USE - Method for preparing graphene. ADVANTAGE - The method enables preparation of graphene with high quality and easily obtained raw materials and suitable for industrial large scale production in an economical and environmentally-friendly manner.