▎ 摘　　要

NOVELTY - Preparing porous graphene comprises (i) taking organic material containing carbon-hydrogen-oxygen and inorganic salt, (ii) uniformly mixing organic material containing carbon-hydrogen-oxygen and inorganic salt to obtain mixture, and (iii) heating the mixture to 900-1600 degrees C under inert gas environment. USE - The method is useful for preparing porous graphene (claimed). ADVANTAGE - The method: utilizes organic matter and inorganic salts as raw materials; has low production cost; and is suitable for large scale production; is simple and easy to operate; is safe and environmentally friendly.