NOVELTY - Preparing palladium/dicobalt trioxide/nickel foam electrode material comprises: (a) cutting a good nickel foam substrate and placing sulfuric acid or nitric acid to carry out acid treatment; (b) preparing electrodeposition bath using divalent cobalt salt and sodium salt, taking inert graphite electrode as anode and a pretreated foamed nickel substrate material as cathode, carrying out electrodeposition; (c) placing the cobalt/foam nickel electrode in tubular furnace and calcining; and (d) dissolving palladium chloride in hydrochloric acid solution, placing electrode above the immersion bath.    USE - The method is useful for preparing palladium-dicobalt trioxide-nickel foam electrode material (claimed).    ADVANTAGE - The method improves hydrogen production and hydrogen storage capacity, and ensures rapid electrical degradation of halogenated organic compound.    DETAILED DESCRIPTION - Preparing palladium/dicobalt trioxide/nickel foam electrode material comprises: (a) cutting a good nickel foam substrate and placing in 0.5-2 mol/l sulfuric acid or nitric acid to carry out acid treatment for 3-8 minutes for removing oxide surface layer, then placing the acid-treated nickel foam substrate sequentially in ethanol and water, then ultrasonicating for 10-20 minutes to remove surface oil; (b) preparing electrodeposition bath using divalent cobalt salt and sodium salt, taking an inert graphite electrode as an anode and taking a pretreated foamed nickel substrate material as a cathode, carrying out electrodeposition under constant temperature and constant current to prepare cobalt/foam nickel electrode, placing the cobalt/foam nickel electrode in an oven and drying at 80-100 degrees C for 0.5-2 hours; (c) placing the cobalt/foam nickel electrode in a tubular electric resistance furnace, calcining at a constant heating rate temperature to reach a preset temperature to obtain dicobalt trioxide/foamed nickel electrode; and (d) dissolving palladium chloride in 1-2 mol/l hydrochloric acid solution to obtain 0.04-0.06 mol/l dihydrogen tetrachloropalladate stock solution, incubating at 3-5 degrees C, then diluting the dihydrogen tetrachloropalladate stock solution with water, immersing in 0.01-0.02 mol/l immersion bath, placing the dicobalt trioxide/foamed nickel electrode above the immersion bath, shaking via shaker until the immersion bath color changes from initial yellow-brown to colorless.