A　glassy　carbon　electrode　(GCE)　modified　with　nickel(II)　tetrasulfophthalocyanine　(NiTSPc)　and　Nafion®　was　used　for　the　investigation　of　the　catalytic　oxidation　of　luminol.　The　modified　electrode　was　found　to　much　more　effectively　improve　the　emission　of　electrochemiluminescence(ECL)　of　luminol　in　a　solution　containing　hydrogen　peroxide.　The　enhanced　ECL　signal　corresponded　to　the　catalytic　oxidation　of　both　luminol　and　H2O　2　by　NiTSPc.　Attached　Ni(III)　on　GCE　was　oxidised　to　Ni(III)　and　then　used　as　the　catalyst　for　the　chemiluminescence　of　luminol.　The　enhanced　stability　of　the　ECL　signal　with　Nafion®　would　mainly　result　from　the　prevention　of　the　dissolution　of　NiTSPc　and　the　adsorption　of　the　oxidation　product　of　luminol　on　the　electrode　surface.　The　proposed　method　enables　a　detection　limit　for　luminal　of　6.0　×　10-8　mol　L-1　to　be　achieved　in　the　presence　of　H2O2　in　the　neutral　solution.　The　enhanced　ECL　intensity　had　a　linear　relationship　with　the　concentration　of　luminol　in　the　range　of　1.0　×　10-7-8.0　×　10-6mol　L-1.