▎ 摘　　要

NOVELTY - The preparation method of composite fiber involves dispersing graphene oxide and surfactant in solvent and then mixing, adjusting pH value, adding amination reagent to the mixture and then centrifuging, washing the mixture using water and ethanol, adding binder to the mixture and then dispersing in solvent, adding polyester fiber to the mixture and then soaking in mixed solution, and stirring. USE - The method is useful for preparation of composite fiber (claimed).