A carbon Fabric/epoxy composite material can be prepared with carbon Fabric as the reinforcement phase and epoxy resin as the binder phase. Use it as the substrate, add six potassium titanate whisker (SPTW) therein, a nano-modified composite will be prepared to investigate how its friction and wear are subjected to change with different loads and what effect the fillers of different doses play on the tribological properties of the composites. Beyond that, its wear mechanism is also discussed herein. The results reveal that the SPTW can exert a good wear resistance effect; there is an optimal dosage of 2.0% for SPTW. In this process, the wear mode of the composite material turns from brittle peeling to adhesive wear.