Process for purifying and recovering super plutonium element from irradiation americium/curium target

The invention relates to a process for purifying and recovering a super plutonium element from an irradiation americium/curium target, which comprises the following steps: extracting the super plutonium element in an irradiation americium/curium target dissolving solution into an organic phase by extracting the organic phase to form a loaded organic phase, and extracting the organic phase by taking Et-Tol-DAPhen as an extracting agent and 3-nitro-trifluorotoluene as a diluent; the loaded organic phase is washed with a nitric acid solution, so that split elements in the organic phase enter the water phase; and carrying out reverse extraction on the super plutonium element in the loaded organic phase by using a dilute nitric acid solution, so that the super plutonium element is fully reversely extracted into the water phase. An extraction system composed of the Et-Tol-DAPhen extraction agent and the trinitrobenzotrifluoride diluent is adopted, the method has the advantages of being better in trivalent super plu