We successfully fabricated the TiO2-based photoelectrode doped with reduced graphene oxide (rGO) to improve the power conversion efficiency of dye-sensitized solar cells (DSSCs). The ratio of rGO was 0.3 similar to 1.5 wt%. The DSSCs with the TiO2 photoanode incorporated 0.3 wt% rGO showed a maximum power conversion efficiency of 6.26% which is 44% higher than the pristine TiO2 photoelectrode. We concluded the introduction of rGO doped at 0.3 wt% ratio contributed to reducing the resistance of the surface and the interface of the photoelectrode from the observation of electrochemical impedance spectroscopy(EIS).