▎ 摘　　要

NOVELTY - Preparing porous graphene, comprises mixing ferrocene and graphene oxide dispersion with water, heat treating to prepare a precursor, then cooling and carrying out acid treatment to obtain porous graphene; where the mass ratio of ferrocene to graphene oxide is 1:20-50:1; and the heating treatment includes heating water at 140-220 degrees C for 1-24 hours. USE - The method is useful for preparing porous graphene (claimed). ADVANTAGE - The method uses easily obtainable wide raw materials, has repetition rate, produces product with excellent and uniform morphology, requires less equipments, is green, and simple.