Abstract: A supported electrochemical catalyst used to produce a proton exchange membrane fuel cell, the supported anode catalyst including an electrically conductive support and Pt/Ni based alloy nanoparticles. The supported electrochemical catalyst can be synthesized using an improved microwave-irradiated polyol (IMIP) method, and a heat treating method while being subjected to a reduction reaction under an inert environment. The catalyst exhibits an improved carbon monoxide (CO) tolerance and high activity with respect to a hydrogen oxidation reaction. In addition, the manufacturing method for the supported electrochemical catalyst is simple, environmentally friendly, quick, and inexpensive.