Abstract: The principle,method and equipment of the catalyzed electrolytic plutonium oxide dissolution(CEPOD) are described. In the presence of small amount of catalyst (such as Ag +),PuO 2 is oxidized into PuO 2 2+ for dissolution by the electrolytic method. This method has the advantages of quick, thorough, batch dissolution and of working in the condition of near the environmental temperature, no adding of hydrofluoric acid(HF) and low acidity(HNO 3), etc. It is fitted for dissolution of PuO 2 which is prepared or calcinated at high temperature(950～1 700 ℃),for MOX spent fuel element,for leaching plutonium scrap and plutonium-contaminated waste and for electrolytic destroy about contaminated or deleterious waste,etc._