Abstract: Studied is the wear-resistance performance of Ti₃AlC₂ ceramic lining material for steel tube.The experiment result shows that the heat resulting from friction will lead to the decomposition and oxidization of the friction surface of Ti₃AlC₂ material and thus generate an amorphous oxide consisting of Ti，Al，Fe and O，which will in a sense play a role of lubricating.Under high normal load or speed，the friction coefficient of Ti₃AlC₂ material decreases with the increasing of the amount of oxide.The majority of wear happens on the oxide layer of the friction surface，which will protect the Ti₃AlC₂ base material.Therefore the use of Ti₃AlC₂ material as ceramic lining for steel tube will be able to protect the base material of steel tube and prolong its service life.