Nanoscale　Ti/Pd2Sn+PdO　and　Ti/Pd　electrodes　are　prepared　by　a　thermal　decomposition　method.　The　catalysts　are　characterized　by　high　resolution　transmission　electron　microscopy,　energy　dispersive　spectrometer　and　selected　area　electron　diffraction　method.　The　activity　and　stability　of　the　prepared　catalysts　were　studied　using　cyclic　voltammetry　and　chronoamperometry　methods.　The　results　show　that　Ti/Pd2Sn+PdO　electrode　has　much　higher　activity　toward　formic　acid　oxidation　than　that　of　Ti/Pd　catalyst　(about　2.4　times).　In　addition,　the　combination　of　Pd2Sn　and　PdO　results　in　the　high　stability　of　Ti/Pd2Sn+PdO　electrode,　which　exhibits　only　25%　degradation　of　current　density　after　being　maintained　at　0.3　V　(vs　SCE)　for　500　s.　The　significant　improvement　in　the　stability　as　well　as　activity　of　Ti/Pd2Sn+PdO　electrode　provides　a　promising　solution　for　the　instability　of　Pd-based　catalysts　for　direct　formic　acid　fuel　cell　application.　©　2015,　Chinese　Mechanical　Engineering　Society　of　Heat　Treatment.　All　right　reserved.