Nuclear fuel loading and unloading ship

The invention belongs to the technical field of nuclear power ship design, and particularly relates to a nuclear fuel loading and unloading ship capable of serving most nuclear power ships. Comprising a plurality of ballast tanks and voids, the two sides and the bottom of the ship are mainly provided with the ballast tanks, and the middle and the bow of the ship are mainly provided with the voids; the deckhouse, the engine room and the steering engine room are arranged at the stern; the spent fuel cabin, the new fuel cabin and the spent fuel sending cabin are arranged in the middle area of the ship; the spent fuel cabin comprises a spent fuel pool, shielding water is filled in the spent fuel pool, and a hoisting grillwork and a plurality of spent fuel storage grillworks are fixed at the bottom of the spent fuel pool; a spent fuel cabin top deck is provided with a spent fuel cabin lifting opening located over the lifting grillwork, and the spent fuel cabin lifting opening is opened or closed through a spent fu