▎ 摘　　要

NOVELTY - Preparing polyaniline/graphene/iron oxide composite material comprises mixing aniline and hydrochloric acid, stirring the mixture, dropwise adding into ammonium persulfate solution and graphene/iron oxide composite powder containing hydrochloric acid mixed solution, adding ammonium persulfate and aniline, stirring at certain solution temperature, time and pH value, filtering, washing, drying, and grinding. USE - The method is useful for preparing polyaniline/graphene/iron oxide composite material (claimed). ADVANTAGE - The composite material has high capacitance, good stability is good and good conductivity.