▎ 摘　　要

NOVELTY - The preparation method of microcrystalline graphene-based porous carbon material involves (1) dispersing the functionalized modified microcrystalline graphite in solvent to obtain dispersion liquid, (2) adding proper amount of acid as a catalyst to the dispersion liquid, placing in a reactor, increasing the temperature to 20-400 degrees C, and reacting for 0.1-100 hours to obtain microcrystalline graphene-based gel, and (3) drying the microcrystalline graphene-based gel at 0-200 degrees C. USE - Preparation method of microcrystalline graphene-based porous carbon material. ADVANTAGE - The method enables preparation of high-density microcrystalline graphene-based porous carbon material with high specific surface area, high hardness, excellent conductivity, and high porosity.