A　novel　Cu/Ti　bilayer　nanoelectrode　was　fabricated　to　improve　electrochemical　nitrate　removal　rate.　The　Cu/Ti　bilayer　nanoelectrode　was　fabricated　by　plating　Cu　on　Ti　nanoelectrode.　In　the　Cu/Ti　bilayer　nanoelectrode,　Ti　nanostructure　of　the　electrodes　surface　can　increases　the　specific　surface　area,　meanwhile　Cu　present　high　electrocatalytic　activity　for　nitrate　reduction.　Using　the　Cu/Ti　bilayer　nanoelectrode,　the　nitrate　concentration　decreased　from　an　initial　concentration　of　50.0　mg/L　to　14.1　mg/L　in　the　presence　of　0.50　mg/L　Na2SO4　after　90　min　electrolysis　(　nitrate　removal　efficiency　of　71.8%).　Under　the　current　conditions,　the　removal　efficiency　of　the　Cu/Ti　bilayer　nanoelectrode　was　254.6%　compared　with　that　of　the　Ti　nanoelectrode　for　electrochemical　denitrification.　SEM　images　illustrated　the　Cu/Ti　bilayer　nanoelectrode　is　a　honeycomb　structure　with　Sponge　deposit　on　it.　The　XRD　results　showed　the　Cu/Ti　bilayer　nanoelectrode　were　dominated　by　Ti,　Cu　and　O.　For　the　same　initial　nitrate　concentration,　the　nitrate　removal　rate　increased　sharply　with　increasing　current　density.　In　the　presence　of　NaCl,　especially　with　IrO2　anode,　a　novel　condition　for　performing　both　cathodic　reduction　of　nitrate　and　anodic　oxidation　of　the　nitrite　and　ammonia　by-products　was　achieved　with　high　removal　efficiency.　Using　the　IrO2　anode　nitrate　could　be　completely　removed.　In　the　treated　solution,　little　amount　of　ammonia　was　detected