This　paper　adopted　magnesium　phosphate　cement　(MPC)　bonding　CFRP　(MPC-CFRP)　as　anode　materials　and　the　effects　of　ions　distribution,　interfacial　composition　and　microstructure　on　the　deterioration　of　interfacial　bonding　properties　of　chloride-contaminated　reinforced　concrete　after　electrochemical　chloride　extraction　(ECE)　treatment　were　systemically　studied.　The　results　showed　that　MPC-CFRP　materials　can　be　used　as　the　ECE　anode　and　achieve　the　chloride　removal　of　concrete.　Current　density　is　the　main　influence　factor　for　ECE　treatment,　the　influence　of　temperature　on　ECE　is　small.　ECE　treatment　could　effectively　remove　the　chloride　ions　and　decrease　the　corrosion　risk　of　rebar　in　concrete.　However,　ECE　treatment　altered　the　interfacial　composition　and　microstructure.　After　ECE　treatment,　the　contents　of　K+,　Na+　and　OH-　around　the　rebar　increased　significantly,　new　alkali　metal　ions　rich　cementitious　phase　and　directional　arrangement　of　lamellar　hydration　product　with　high　Ca/Si　ratio　were　formed.　Besides,　ECE　treatment　caused　the　cracking　and　decomposition　of　C-S-H　in　rebar-concrete　interface.　As　a　result,　the　interfacial　bond　strength　decreased.　Taking　all　these　factors　into　consideration,　the　relatively　better　condition　for　ECE　treatment　is　2　A/m(2).　(C)　2018　Elsevier　Ltd.　All　rights　reserved.