The glassy carbon base Pt/C electrode and the glassy carbon base Pt/C/NH₄NiPO₄ electrode were prepared by the electrodeposition method. The surface morphology of the electrode was characterized by SEM, and the electro-catalytic properties of the electrode were measured by the electrochemical workstation. It is shown that the glassy carbon base Pt/C/NH₄NiPO₄ electrode has better electro-catalytic activity, with a larger oxidation current and a faster electrode reaction rate, and the oxidation process is mainly controlled by the diffusion of the ethanol molecules. The glassy carbon base Pt/C/NH₄NiPO₄ electrode has a potential to replace other electrodes for the ethanol electro-catalytic oxidation, as its first oxidation potential at the positive scanning is reduced by 237mV as compared with the glassy carbon base Pt/C electrode.