By incorporation of reduced graphene oxide-carbon nanotubes (RGO-CNTs) in the oxide mixture RuO₂-IrO₂-SnO₂ to prepare RGO-CNTs doped RuO₂-IrO₂-SnO₂/Ti anode via multiple coating -calcination process. Then the surface morphology, structure, phase composition, and electrocatalytic activity of the anodes prepared at different calcination temperature were characterized by means of SEM, EDS, XRD, and electrochemical techniques, accordingly their electrolysis lifetime enhancement were also assessed. The results demonstrate that uniformly dispersed hybrid RGO-CNTs in the precursors still remain partially as elemental form in the acquired calcinates, with the increasing calcination temperature, the RGO-CNTs amount in the calcinates decreases. The doped RGO-CNTs can alleviate the thermal stress generated within the coating at high temperatures, improving the surface morphology of the anode with fewer and smaller thermal crack defects. Moreover, with the increasing calcination temperature, the doped RGO-CNTs may facilitate the precipitation of active RuO₂ and IrO₂ grains, enhancing the content of Ru and Ir in the coating, thereby enhance the electrolysis lifetime by 10%-30%, and voltammetric charge by 18.95%-26.57%. Consequently, the doped RGO-CNTs hybrid material can enhance the corrosion resistance and electrocatalytic activity of the metal oxide anode, therefore prolong its service life.