Polyimide is an ideal material for bearing cages due to its special porous properties. However, under long-term high-speed operation of bearings, Polyimide cages inevitably experience wear due to high temperatures and complex movements with bearing balls. In this study, a ball disc wear tester was used to investigate the influence of lubrication state, friction pair material, temperature and other parameters on the wear performance of polyimide under pure sliding and rolling-sliding motion states .The study revealed that in dry sliding and rolling-sliding motions, black wear marks appeared on the surface of polyimide, which were related to iron elements from the wear of bearing steel balls. Changing the material of the rolling ball, it was found that ceramic balls could reduce the blackening of the polyimide surface and improve the surface quality of the worn polyimide. With the increase of experimental temperature, the friction coefficient and wear surface of the ceramic material rolling ball test did not fluctuate too much, and it has good temperature stability. This study is of great significance for revealing the friction and wear properties of polyimide and improving the performance of cage.