NOVELTY - The method comprises providing a cathode electrophoretic deposition (EPD) suspension via mixing an ionomer solution with electrolyte such as perchloric acid, providing an anode EPD suspension via mixing a carbon nanomaterial (CNM)-supported catalyst with a solution of same composition as that of cathode EPD suspension, executing (12) ultrasonication and high-speed stirring on cathode and anode EPD suspensions respectively for turning them into homogenous suspensions, and providing a low-voltage EPD apparatus incorporated with a porous material to divide it into anode and cathode compartments.    USE - The method is useful for making a MFC electrode that is useful as an anode and a cathode in proton exchange membrane fuel cells and direct methanol fuel cells (all claimed), where the cells are useful in electric vehicles, laptop computers and mobile phones.    ADVANTAGE - The method is capable of effectively making the MFC electrode with improved performance and lifespan, high energy densities, high-energy-conversion efficiencies, structural simplicity and excellent durability and portability.    DETAILED DESCRIPTION - The method comprises providing a cathode electrophoretic deposition (EPD) suspension via mixing an ionomer solution with electrolyte such as perchloric acid, providing an anode EPD suspension via mixing a carbon nanomaterial (CNM)-supported catalyst with a solution of the same composition as that of the cathode EPD suspension, executing (12) ultrasonication and high-speed stirring on the cathode and anode EPD suspensions respectively for turning them into homogenous suspensions, providing a low-voltage EPD apparatus incorporated with a porous material to divide it into an anode and a cathode compartments, filling the anode and cathode EPD suspensions in the anode compartment and cathode compartment respectively, introducing an inert gas into the anode compartment for stirring the anode EPD suspension, providing an electrode base substrate as the anode of the EPD apparatus, providing a low-voltage direct current (DC) power supply to provide DC low voltage to the EPD apparatus to evenly coat a catalyst layer on the electrode base substrate, removing the substrate coated with the catalyst layer from the EPD apparatus, washing the catalyst layer coated on the electrode base substrate with de-ionized water, and drying the catalyst layer coated on the substrate to form a membrane fuel cell (MFC) electrode. The CNM-supported catalyst is made via coating a nanocatalyst (greater than 60 wt.%) on a CNM consisting of carbonnanotube (CNT), carbon nanofiber (CNF), carbon nanocoil (CNC) and carbon nanohorn (CNH). The ionomer is Nafion (RTM: Sulfonated tetrafluoroethylene based fluoropolymer-copolymer). A dry ratio of the CNM-supported catalyst to the ionomer is 1:10 to 1:4. The ultrasonication and the high-speed stirring last for 0-60 minutes. The EPD apparatus comprises an EPD cell, and a porous membrane between the anode and cathode compartments. The electrode base substrate consists of non-catalyzed gas diffusion electrode, carbon paper and carbon cloth. The DC low voltage is 0-5 volts, and the DC low voltage lasts for 0-180 minutes.    DESCRIPTION OF DRAWING(S) - The diagram shows a flow chart of a method for making a membrane fuel cell electrode.    Providing anode and cathode EPD suspensions (11)    Executing ultrasonication and high-speed stirring on the anode and cathode EPD suspensions (12)    Providing an EPD apparatus with separated anode and cathode compartments and filling the anode and cathode EPD suspensions in the anode and cathode compartments (13)    Executing low-voltage EPD (14)    Finishing a MFC electrode. (15)