Palladium-nickel　(Pd-Ni)　bimetallic　composite　electrodes　(Pd-Ni/PPy/Ti　electrode　and　Pd-Ni(SDBS)/PPy/Ti　electrode)　were　fabricated　on　meshed　titanium　(Ti)　substrates　by　electrochemical　deposition　in　the　presence　of　polymeric　pyrrole　(PPy)　and　PPy-sodium　dodecylbenzenesulfonate　(SDBS),　respectively.　The　effects　of　the　doped　SDBS　on　electrochemical　catalytic　activities　were　studied.　Cyclic　voltammetry　(CV)　revealed　that　the　hydrogen　adsorption　peak　value　of　Pd-Ni/PPy/Ti　electrode　was　-93　mA,　and　that　of　Pd-Ni　(SDBS)/PPy/Ti　electrode　was　-154　mA,　which　indicated　that　the　latter　had　better　electrochemical　catalytic　activity.　Scanning　electron　microscope　(SEM)　images　revealed　the　effects　of　PPy　and　SDBS　on　the　surface　morphologies　of　electrodes.　The　quantities　of　the　Pd　and　Ni　on　Pd-Ni/PPy/Ti　and　Pd-Ni　(SDBS)/PPy/Ti　electrodes　were　analyzed　by　means　of　inductively　coupled　plasma-atomic　emission　spectrometry　(ICP-AES).　The　results　of　X-ray　diffraction　(XRD)　showed　that　both　electrode　films　were　made　of　Pd-Ni　alloy.　Experimental　results　indicate　that　Pd-Ni　(SDBS)/PPy/Ti　electrode　has　good　electrochemical　catalytic　activity　and　high　potential　of　reductive　dechlorination　under　lower　Pd　loading　due　to　the　addition　of　surfactant　SDBS.