RuO230%-70%　Ti　anode　coatings　were　prepared　by　thermal　decomposition　method　onto　pure　titanium　TAl　substrates　which　had　been　oxidized　thermally　at　400-800　°C　for　1　h.　The　effects　of　the　thermal　oxidization　method　on　the　titanium　anode　were　investigate　by　XRD,　SEM　and　electrochemical　testing　methods.　The　electrocatalytic　activity　and　electrochemical　stability　of　coating　anodes　were　also　detected　by　cyclic　voltammetry　test,　anodic　polarization　curve　test　and　accelerating-life　test.　The　results　show　that　thermal　oxidization　temperature　has　a　greater　effect　on　the　phase　structure　and　morphologies　of　the　substrates.　The　phase　structure,　morphologies,　electrochemical　activity　and　electrochemical　stability　of　the　coatings　also　changes.　The　properties　of　Ru-Ti　oxide　coated　anode　are　all　very　well　under　600　°C.　The　substrate　pretreated　by　thermal　oxidization　at　500　°C　and　then　coated　to　make　the　anode　is　the　best　choice,　especially　the　electrocatalysis　and　electrochemical　stability　are　considered.