▎ 摘　　要

NOVELTY - A dispersion liquid of graphene oxide and sulfur-containing inorganic salt is mixed, and reacted at 20-90 degrees C for less than 24 hours, to obtain graphene. The mass ratio of dispersing liquid of graphene oxide and sulfur-containing inorganic salt is 0.1-10:1. USE - Preparation of graphene. ADVANTAGE - The graphene is efficiently and economically prepared, by a simple method.