Abstract: A phyllosilicate lubricating material was prepared by ball-milling and mixing with traditional additives. The self-repairing performance of lubricant additives in lithium grease was investigated by four-ball friction and wear tester, and the self-repairing effect was evaluated by optical microscope (OM), energy dispersive spectrometer (EDX), and electronic balance. The results were compared with that of the traditional additives and the mechanism was discussed. The results indicate that the composite system of the phyllosilicate and traditional additives exhibits excellent tribological and self-repairing properties. It exhibits the best self-repairing effect at 100N loading, 800 r/min, 60℃, and friction time 80 min. It is concluded that the complex physical chemistry reactions occur between additives and friction surface, resulting in a ceramic-like metal that sinks to the surface defects and forms a protective layer, the so-called self-repairing surface layer.