The work aims to study the friction and wear properties of adapter PTFE layer filled with fluorographite polymer. PTFE-based composites were prepared by fluorographite polymer with mass fractions of 2%, 5%, 8% and 11% and the friction coefficient was respectively tested at 20, 40, 60 and 80 r/min. The surface abrasion data of samples were collected by 3D video microscope and the samples' volume wear rate was calculated. The micro-morphology of the abrasion marks was observed by SEM. The friction coefficient of samples was increased with the increase of the mass fraction of fluorographite polymer at the same speed. The volume wear rate could be significantly reduced after fluorographite polymer was filled. When the mass fraction of the filler was over 8%, the volume wear rate of samples tended to be stable and the friction coefficient was remarkably increased. The PTFE layer filled with fluorographite polymer can significantly improve the wear resistance of the adapter, but the mass fraction should not exceed 8%; otherwise, the friction between the adapter and the transport cylinder will increase, thus increasing the filling and tube-exit resistance of the spacecraft.