In　the　present　work,　a　novel　sensor　for　luminol　electrochemiluminescence　(ECL)　was　constructed　on　the　base　of　a　C-doped　titanium　oxide　amorphous　semiconductor　electrode.　The　morphology,　structural　and　electrochemical　properties　of　the　electrode　was　characterized　by　X-Ray　diffraction,　X-Ray　photoelectron　spectroscopy　and　electrochemical　methods.　The　ECL　behavior　of　luminol　excited　by　hot　electrons　injected　from　C-doped　oxide　film-covered　electrodes　in　aqueous　medium　has　been　investigated　in　B-R　buffer　solution　(pH　=　9)　when　linear　sweep　cyclic　voltammetry　(CV)　was　applied.　Two　ECL　peaks　were　observed　at　-1.0　V　(vs.　Ag/AgCl,　reduction　process)　and　-0.75　V　(vs.　Ag/AgCl,　oxidation　process).　The　possible　mechanism　was　discussed.　The　C-doped　Ti　oxide　electrode　shows　excellent　properties　for　sensitive　determination　of　luminol　with　good　reproducibility　and　stability.　The　linear　response　of　luminol　was　in　the　range　of　1　x　10(-8)　to　9　x　10(-8)　mol/L　with　the　detection　limit　of　3　x　10(-9)　mol/L　(S/N　=　3).　Since　luminol　is　one　of　the　most　useful　ECL　probe,　many　bioactive　compounds　which　can　be　labeled　by　luminol　are　able　to　be　detected　by　using　the　proposed　method.　(C)　2010　Elsevier　Ltd.　All　rights　reserved.