Abstract: The Ti₃SiC₂-Ag composite was fabricated through spark plasma sintering technology. The friction and wear properties of Ti₃SiC₂-Ag composite sliding against different counterparts,including Si₃N₄,Al₂O₃ and SiC balls were investigated at ambient temperature and compared with that of pure Ti₃SiC₂under the same condition. The morphologies of worn surfaces were observed by scanning electron microscope,elemental valence states analyzed by X ray photoelectron spectroscopies and the friction and wear mechanisms were discussed. The results showed that the different counterparts have a significant impact on the friction and wear properties of Ti₃SiC₂-Ag composite. The Ti₃SiC₂-Ag composite showed lower wear rate sliding against Si₃N₄ and SiC balls for TiO 2and SiO xoxide films could inhibit grain pulling out and have antifriction effect,even though there is mechanical wear characterized by grain pulling out. The higher wear rate of Ti₃SiC₂-Ag composite sliding against Al₂O₃ balls is attributed to the predominant mechanical wear mechanism characterized by brittle fracture and grain pulling out. For the Ti₃SiC₂sliding against Si₃N₄ and Al₂O₃ balls,the friction and wear mechanism is mainly the mechanical wear involving brittle fracture,grain pulling out,falling off and bals abrasive wearing. The plastic deformation and oxide film make wear rate lower by inhibiting grain pulling out when Ti₃SiC₂sliding against SiC.