The utility model is applicable to the field of nuclear
waste treatment, and discloses a shielding device for high-radioactivity waste storage and transfer of a
nuclear power plant, which comprises an outer
barrel, a
barrel cover, a hinge locking component and an inner
barrel, the inner barrel is arranged in the outer barrel, the outer barrel is provided with an outer wall and an inner wall, the inner wall is fit with the inner barrel in shape, a
radiation-proof material is filled between the inner wall and the outer wall, the outer wall is provided with a first lifting lug extending outwards, the barrel cover is arranged on the upper portion of the outer barrel, and a second lifting lug is arranged on the barrel cover. After
radioactive waste is loaded into the inner barrel and the inner barrel is sealed, the inner barrel is then loaded into the outer barrel, the barrel cover and the outer barrel are locked through the hinge locking
assembly, then an operator carries the outer barrel through connection of the first lifting lug and
mechanical equipment, and when the barrel cover is opened and closed, the second lifting lug or a lifting appliance on the barrel cover can be selected according to an existing clamp and tool. The whole shielding device is simple in structure, the inner barrel, the outer barrel and the barrel cover are convenient and simple to install and carry, and the
radiation time of operators is shortened.