Abstract: The Fe-C-MoS2/CuSn alloy-based antifriction composites were prepared through powder metallurgy, of which the microstructure and mechanical properties were studied. The results showed that the CuSn alloy provides good electric conductivity for the composites, and its strength is higher than that of the sintered materials of the same alloying elements. The wettabilities of CuSn alloy and Fe are so high that accelerate the alloying process of sintering so as to improve greatly the strength, hardness and notch toughness. The thermal expansion coefficient of free carbon distributed in matrix is higher than that of the matrix itself and plays a role of antifriction in the composites. Meanwhile, the MoS2 homogenously distributed in matrix also plays evidently the role of antifriction at high temperature. If the mass fraction of Fe is up to 15%, the toughness is 20.6 J/cm², tensile strength 163.2 MPa and HB hardness 53.8, i.e., properties of this composites have been up to even exceeded the standard TB/T1842.1-2002 for the slides made via powder metallurgy for electric locomotives. The composites thus become a new material for the pantograph slides of high-speed locomotives.