▎ 摘　　要

NOVELTY - Preparation of graphene oxide-titanium composite medical material involves adding graphene oxide to deionized water or ethanol, ultrasonically processing to obtain graphene oxide solution, freeze-drying graphene oxide solution to obtain graphene oxide powder, adding graphene oxide powder and titanium-based powder into vacuum ball milling tank, ball milling to obtain mixed powder, feeding mixed powder into printer for three-dimensional printing to obtain porous composite material, performing stress relief annealing on porous composite material and forming micro-nano pores on annealed porous composite material by dealloying method or a micro-arc oxidation method, where titanium-based powder is titanium powder or titanium alloy powder. USE - Preparation of graphene oxide-titanium composite medical material. ADVANTAGE - The prepared composite medical material has excellent mechanical property and can quickly form good bone bond with surrounding bone tissue.