The invention discloses a high-performance wind power high-speed shaft brake pad and a preparation method thereof. A friction material comprises, by mass, 50-80% of copper powder, 1-6% of iron powder,3-10% of high-carbon ferro-chrome, 8-20% of copper-coated graphite and 8-20% of copper alloy powder. According to the wind turbine generator unit high-speed shaft brake pad provided by the invention,the contents and the existence forms of all the components are adjusted and controlled through research on the action mechanisms of all the components of the friction material, the reasonable proportion and technological parameter optimization, so that the brake pad is reasonable in bearing capacity and good in heat dissipation performance. The obtained friction material for the brake pad has thestable and suitable friction factor, high strength, good wear resistance and large specific heat capacity and density, can absorb more friction heat in unit volume and effectively bear the peak loadunder operation conditions and is good in heat conducting property, resistant to high temperature during service, high in operation reliability and longer in material service life, the maintenance frequency is reduced, and the power generation efficiency of draught fans is remarkably improved.