With the speed up of the train, higher performance demands are put forward to the materials which have friction function. The friction materials produced by power metallurgy technology have a lot of advantages, such as good wear resistance, better thermal conductivity, bearing high lord, work reliably and so on. So they are used widely in the fields such as auto industry, aerospace and so on. The application of metal powder metallurgy technology in preparation friction materials of railway vehicles was researched in this paper, such as brake-shoe, brake lining of train braking, pantograph slide of electric locomotive, electrify boots slider of the maglev train and so on. This kind of friction material has superior performance and better prospects.