Palladium-nickel/titanium　(Pd-Ni/Ti)　and　palladium-nickel/polymeric　pyrrole　film/titanium　(Pd-Ni/PPy/Ti)　electrodes　were　prepared　by　electrochemical　deposition.　The　electrochemical　characteristics　of　the　Pd-Ni/Ti　and　Pd-Ni/PPy/Ti　electrodes　were　Studied　by　means　of　cyclic　voltammetry　(CV)　based　on　orthogonal　experiments.　CV　studies　on　the　electrodes　were　conducted　in　0.5　mol/L　sulfuric　acid　solution.　Experimental　results　indicate　that　the　hydrogen　adsorption　peak　value　of　the　Pd-Ni/PPy/Ti　electrode　seen　at　ca.　-500　mV　is　larger　than　that　of　Pd-Ni/Ti　electrode.　Scanning　electron　microscope　(SEM)　images　indicate　that　polymeric　pyrrole　film,　which　formed　on　electrode　can　modify　the　electrode　surface　configuration　significantly　and　provide　the　surface　of　the　Pd-Ni/PPy/Ti　electrode　with　more　layers　and　a　larger　surface　area.