▎ 摘　　要

NOVELTY - Preparation of graphene comprises filling two graphene rods consisting of anode and cathode with diameter of 6-13 mm, preferably 10 mm into arc furnace via clip; vacuumizing to 10-3 Pa via mechanical pump and molecular pump; accessing protective air at 52000-133000 Pa; arc discharging between anode and cathode at discharge current of 100-200 A, such that distance between anode and cathode is 2-6 mm; and searching graphene sample from arc furnace inner wall. USE - Preparation of graphene. ADVANTAGE - The method prepares graphene with high crystallinity.