In order to improve the sintering properties of Cu-Mn-Al alloy and its friction and wear properties under dry friction,copper coated graphite was added into Cu-Mn-Al alloy as self-lubricating phase,and Cu-Mn-Al/copper coated graphite composites were prepared by plasma sintering technology.The effects of copper coated graphite content on the density and hardness of composites were analyzed,and the friction and wear properties of different composites under dry friction and oil lubrication were discussed.The results show that compared with the sintering method in vacuum and hydrogen reduction atmosphere,plasma sintered Cu-Mn-Al/copper coated graphite composites have higher density and hardness,and its hardness decreases with the increase of copper coated graphite content.Under condition of dry friction and load lower than 20 N,the composites with copper coated graphite mass fraction from 6% to 8% have better antifriction and wear resistance,which can be used as self-lubricating material under dry friction conditions.Under condition of oil lubrication,the bearing capacity of the composites is greatly improved,but when the load is large,the antifriction wear resistance and bearing capacity of the composite are slightly lower than that of Cu-Mn-Al alloy.