RuO2-CeO2/Ti　electrodes　were　prepared　by　thermal　decomposition,　taking　RuCl3　and　CeCl3　as　raw　material,　ethanol　as　solvent　and　Ti　slide　as　substrate.　The　microstructures　were　investigated　by　means　of　XRD,　SEM　and　HRTEM.　The　supercapacitive　properties　were　examined　by　cyclic　voltammetric　and　chronopotentiometry　measurements.　The　results　showed　that　the　highest　specific　capacitance　was　obtained　in　the　electrodes　prepared　at　300°C,　and　the　electrodes　at　higher　or　lower　sintering　temperature　had　lower　specific　capacitances.　It　is　indicated　that　the　capacitive　properties　of　the　Ti/RuO2-CeO2　electrodes　were　influenced　by　their　microstructures.　The　unstable　or　well　developed　structure　of　the　oxides　was　not　good　for　the　supercapacitor　performance　of　the　electrodes.　In　the　electrodes　prepared　at　300°C,　the　amorphous　structure　with　nanocrystals　could　be　found.　This　kind　of　microstructure　had　more　electroactive　points　and　lager　electrochemical　roughness.