In this paper the progress of plastic and its composite tribo-materials is reviewed. Polymer alloys of PTFE

PEEK and UHMWPE and their composites are considered the key research areas in future. Considering plastic characteristics

plastic element design will be helpful to heat dispersion and the thermal resistance of plastics and ambient media resistance are also improved for tribological applications. Interfaces between plastic matrices and additives are still momentous. The future directions are tribo-polymer design based on modern material design

the creep and long-term stabilization

gradient function polymers and green tribo-polymers.