Gold-nickel　alloy　was　synthesized　by　arc-melted　process.　The　electro-oxidation　of　formic　acid　of　Au-Ni　alloy　was　investigated　at　room　temperature　by　cyclic　voltammetry　and　chronoamperometry.　The　results　were　compared　with　those　at　a　polycrystalline　gold　electrode　surface.　It　is　found　that　Au-Ni　alloy　is　catalytically　more　active　than　pure　gold　according　to　the　comparison　of　the　main　peak　potential　and　current　density.