▎ 摘　　要

NOVELTY - Preparation of graphene involves preparing graphite suspension mixture comprising graphite, a solvent and a stabilizer mixture, uniformly and continuously circulating the graphite suspension mixture using a circulating pump, focusing a pulsed laser generated by pulsed laser under a liquid surface of the graphite suspension mixture, circularly scanning the graphite suspension mixture, centrifugally separating the supernatant of the graphite suspension mixture after scanning, and drying the resultant precipitate in a vacuum oven. USE - Preparation of graphene (claimed) used as lubricant additive. ADVANTAGE - The method enables simple, continuous and environmentally-friendly preparation of graphene having high and reliable quality and excellent dispersion stability, anti-friction property and wear resistance, within shirt period of time by pulsed laser scanning of graphite suspension mixture.