A　novel　30%　RuO2-70%TiO2　coating　anode　was　prepared　on　Ti　substrates　carburized　at　700-1000　°C　by　a　thermal　decomposition　method.　The　effects　of　the　carburizing　temperature　on　the　structure　of　the　substrate　and　anode　were　investigated　by　XRD,　SEM.　The　electrochemical　activity　and　stability　of　the　anode　were　detected　by　the　cyclic　voltammetry　and　accelerated-life　tests.　The　results　show　that　with　the　increasing　of　carburizing　temperatures,　the　structure　of　the　Ti　substrate　changes　and　further　the　morphology　of　the　Ru-Ti　oxide　coating　varies　greatly.　The　electrochemical　activity　and　stability　of　the　anode　are　then　affected　significantly　by　the　carburizing　temperatures.