Researches on self-repairing material(serpentine phyllosilicate)of our team in the past few years,such as ultrafining treatment,surface modification,self-repairing mechanism,the effect of rare metal on the self-repairing performance of serpentine,were introduced summarily.The phyllosilicate of serpentine shows excellent tribological and self-repairing performance for metal worn surface as additive in lubricant.