▎ 摘　　要

NOVELTY - Preparing graphene hollow fiber comprises (1) vacuum soaking the polyacrylonitrile fiber or carbon fiber raw material with aqueous solution of iron salt for period of time, and placing in oven for drying; (2) performing carbonization by placing the soaked raw material in atmosphere furnace, heating to predetermined temperature, carrying heat preservation, cooling to room temperature, and taking out; (3) stirring the obtained carbonized product in solvent, and allowing to stand; and (4) placing obtained float in vacuum drying oven, and drying. USE - The method is useful for preparing graphene hollow fiber. ADVANTAGE - The method: is economical, and simple. The graphene hollow fiber: has large specific surface area, less structural defects, and low preparation cost.