The IrO2-Ta2O5 coated titanium anodes (Ti/IrO2-Ta2O5-G) with different graphene contents were prepared by thermal decomposition method. The microstructure was analyzed by FESEM and EDX, and the electrochemical properties were investigated by electrochemical testing including cyclic voltammetry(CV), anode polarization curves, and electrochemical impedance spectroscopy(EIS). As compared with the traditional Ti/IrO2-Ta2O5 anode, the results indicate that the rugged surface morphology with tiny cracks of the Ti/IrO2-Ta2O5-G anodes offer more active center for oxygen evolution reaction and have larger electrochemically active surface area, better electrocatalytic activity for oxygen evolution. The Ti/IrO2-Ta2O5-G anode with 0.4 g稬-1 graphene contents presents the best electrochemical performance.