▎ 摘　　要

NOVELTY - Producing graphene, comprises (a) quenching a graphite block by heating at 400-1000 degrees C in quenching medium, drying, mechanically crushing, and grinding to obtain a powder, (b) subjecting the graphite powder to a ball mill for dry grinding, and (c) performing wet grinding for the powder by adding polyvinylpyrrolidone solution, mixing to obtain a suspension, adding water, performing solid-liquid separation of black suspension, and drying. USE - The method is useful for producing graphene (claimed). ADVANTAGE - The method is environmentally-friendly, simple and economical, has high raw material conversion rate, and produces high-quality graphene in bulk.