▎ 摘　　要

NOVELTY - Preparation of three-dimensional graphene material comprises preparing graphene oxide through pressure graphite oxide process, and ultrasonically dispersing in organic solvent to obtain graphene oxide solution; and mixing metal salt solution and organic solvent to obtain mixed solution, and contacting with graphene oxide solution for 20-60 minutes. USE - The method is for preparation of three-dimensional graphene material. ADVANTAGE - The method is simple, can transform liquid phase of graphene oxide to graphene hydrogel with good conductivity and certain shape, and has high efficiency, instant molding without using complicated equipment, and no cumbersome steps and extra energy consumption.