Abstract: The phenolic resin modified by nitrile rubber as matrix, Kevlar/glass/steel/copper fibers as the hybris fibers, prepared friction materials and tested the tribological properties of the materials under dry friction conditions by the friction and wear testing machine, used the scanning electron microscopy (SEM) to observe the surface of friction materials, studied the effect of different hybrid fiber components on friction material properties. The results show that the friction coefficient and wear rate decrease with the increase of sliding speed, and which have no obvious change trend with the increase of load. In the friction process, the wear form of the friction material which containing four fibers is furrow and the plastic deformation; the wear form of the material not containing Kevlar/glass hybrid fiber is mainly fatigue wear; the wear form of the material not containing steel/copper hybrid fiber is mainly adhesive wear. Thus, adding hybrid fiber can effectively improve the friction coefficient of material, reduce the wear rate, and obviously improve the tribological properties of the material.