▎ 摘　　要

NOVELTY - Preparing monophenol by pyrolysis of lignin comprises (a) dispersing lignin and graphene oxide in an alkaline solution, adjusting pH again to carry out acid precipitation to obtain precipitated solid i.e. graphene oxide-lignin composite; and (b) placing the graphene oxide-lignin composite in a protective atmosphere for pyrolysis to obtain gas-phase product, monophenol-containing liquid-phase product and solid-phase product coke, respectively. USE - The method is useful for preparing monophenol by pyrolysis of lignin. ADVANTAGE - The method is simple, economical and suitable for large-scale popularization and application and has high yield.