Ti/TiO2/IrO2-RuO2 electrodes were evaluated with an aid of Taguchi method and orthogonal arrays to elucidate the effect of the experimental parameters, such as type of intermediate layer between Ti substrate and IrO2-RuO2 film, heat treatment temperature, heat treatment time, and flow rate of air, on the corrosion resistance of the electrodes. Although the chemical composition of the as-deposited IrO2-RuO2 films was almost identical regardless of the processing conditions, it was found that the presence and the type of the TiO2 intermediate layer was a critical factor to the anticorrosion properties of the Ti/TiO2/IrO2-RuO2 electrodes among four different experimental parameters investigated. The optimal condition was the dip-coated IrO2-RuO2 film having the TiO2 intermediate layer prepared by plasma spray and subsequently heat treated for 120 min at 450degreesC with air flow rate of 3 sccm.