A high wear-resistant polyvinylidene fluoride(PVDF)composite was prepared by blending-hot pressing-sintering process.The composite was reinforced with carbon fiber(CF）and aramid fiber(AF).The effects of graphite,MoS2 and nano-SiO2 on the mechanical and tribological properties of PVDF composite were further studied.Microscope,scanning electron microscopy(SEM)with energy dispersive spectrometer(EDS)and FT-IR spectrometer were used to investigate the morphology of the friction surface and the element composition and distribution of the transfer film.The friction and wear mechanism was discussed.The results show that the hardness and elastic modulus of the composites increase with the addition of fiber,graphite and nano-SiO2,and the wear resistance is improved obviously.When 2% volume fraction of carbon fiber,8% volume fraction of aromatic fiber,5% volume fraction of graphite and 0.5% volume fraction of SiO2 are added into PVDF,the friction coefficient is as low as 0.33 and the wear rate is as low as 1.12×10-6 mm3/（N· m）.The complex physical and chemical reactions of graphite,CF and SiO2 take place in the friction process of PVDF composites.The uniformityand strength of the transfer film have an important influence on the friction properties of PVDF composites,which provides a new idea for the development of high wear-resistant PVDF composites.