Ti/IrO2-SnO2-xCeO2　(mole　fraction)　electrodes　with　different　mole　fractions　of　CeO2　were　obtained　by　thermal　decomposition　method　at　360　.　The　influences　of　the　CeO2　content　on　microstructure　and　EIS　properties　of　the　prepared　electrodes　were　investigated　by　XRD,　EIS　and　stability　test.　The　results　show　that　the　crystallization　degree　of　the　IrO2-SnO2　oxides　decreases　with　increasing　CeO2　content,　which　reveal　that　CeO2　can　inhibit　crystallization　of　IrO2-SnO2.　The　electrode　with　20%　CeO2　reaches　maximum　specific　capacitance　of　505.7　F/g,　which　is　about　three　times　than　that　of　the　IrO2-SnO2　binary　oxides　electrode.　When　the　amount　of　CeO2　is　less　than　20%,　the　less　effect　on　the　transfer　resistance　(Rct)　and　relaxation　time　(τ)　can　be　obtained.　After　6000　times　cycle,　the　specific　capacitance　of　the　electrode　with　10%CeO2　increases　by　34.39%　and　20%　CeO2　increases　by　3.45%.　The　electrodes　have　good　cyclic　stability.　©,　2014,　Science　Press.　All　right　reserved.