▎ 摘　　要

NOVELTY - The method for preparing graphene, involves (S1) mixing pyridine and formic acid in ratio of 1:1-1:5 to obtain mixed solvent, (S2) dispersing oxidized graphite in mixed solvent to obtain mixed solution, (S3) ultrasonically dispersing mixed solution for 30-40 minutes, (S4) adding 0.2-0.5 ml methyl silicone oil, carrying out reflux reaction at atmospheric pressure, until the black material is not precipitated, stopping reflow reaction, and (S5) isolating the product and purifying to obtain graphene. The addition amount of oxidized graphite to mixed solvent is 5-7 mg/mL. USE - Method for preparing graphene (claimed). ADVANTAGE - The method enables preparation of graphene improved reduction degree of oxidized graphite and improved quality.