Pd-Ru, Pd and Ru nanoparticles supported on Vulcan XC-72 carbon were prepared by chemical reduction of PdCl2 and/or RuCl3 in aqueous solution using NaBH4 as the reducing agent. Transmission electron microscopy measurements showed that Pd-Ru particles were uniformly dispersed on carbon. The particle size of Pd-Ru is around 5-9 nm. X-ray diffraction analysis indicated that Ru formed alloy with Pd in Pd-Ru/C catalyst. The electroreduction of hydrogen peroxide on Pd-Ru/C, Pd/C and Ru/C in H2SO4 solution was examined by linear sweep voltammetry and chronoamperometry measurements. Results revealed that Pd-Ru/C catalyst exhibited higher electrocatalytic activity for hydrogen peroxide reduction than Pd/C and Ru/C. All the catalysts showed good stability for hydrogen peroxide electroreduction in H2SO4 electrolyte.