▎ 摘　　要

NOVELTY - Preparation of graphene involves adding natural flaky graphite, stripping agent and solvent to a sealed container, introducing gas at pressure of 1-10 atmosphere for 1-48 hours, such that gas is solubilized in the solvent, ultrasonically processing gas-solubilized suspension at 100-800 W for 5-100 hours, centrifugally separating processed solution, and separating solid substance which is graphene. The mass ratio of natural flaky graphite and solvent is 1:10-1:10000. The mass ratio of natural flaky graphite and stripping agent is 1:0.5-1:100. USE - Preparation of graphene (claimed). ADVANTAGE - The method enables preparation of graphene which is capable of dispersing at a high concentration in an organic solvent.