The　electrochemical　reduction　approach　has　been　suggested　as　a　promising　method　for　detoxification　of　chlorine-containing　aromatic　hydrocarbons.　In　this　study,　the　electrocatalytic　dechlorination　of　atrazine　was　studied　by　using　a　non-noble　catalyst,　binuclear　iron　phthalocyanine　coated　onto　multi-walled　carbon　nanotubes　(bi-FePc/MWNT).　Both　experimental　and　theoretical　results　indicate　that　dechlorination　of　atrazine　occurs　rapidly　on　bi-FePc/MWNT　electrode.　The　reaction　depends　on　the　adsorption　of　the　chlorinated　organic　compound　on　the　electrode　surface　and　the　reaction　rate　with　hydroxy.　By　liquid　chromatography-tandem　mass　spectrometer　technique,　the　dechlorination　product　of　atrazine　can　be　assigned　to　2-hydroxy-4-ethylamino-6-isopropylamino-1,3,5-triazine,　which　could　be　disposed　by　more　convenient　and　economic　biodegradation　method.