▎ 摘　　要

NOVELTY - Preparing porous graphene material comprises (i) mixing graphene-based component with auxiliary component to obtain mixture or adding graphene-based component into a solvent to obtain original sol, (ii) placing the raw solvent prepared in step (i) in a reaction vessel and heating at 50-180 degrees C for 3-24 hours to obtain porous graphene gel, (iii) pouring the solvent, and drying the porous graphene in a freeze dryer to obtain final product. USE - The method is useful for preparing porous graphene material. ADVANTAGE - The porous graphene material has excellent conductivity, large specific surface area, rich in pores, and meets the use requirement. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for porous graphene material obtained by above method, the material has a network structure formed by overlapping graphene sheets, the porous graphene material has a specific surface area of 300-900 m2g-1, the pore volume is 0.1-2 cm3g-1, and the wall thickness is 0.335-3350 nm.