Abstract: How to withdraw the spent fuel assemblies from the spent fuel storage canister is a key issue in the reprocessing for the spent fuel with dry and wet storages. Aiming at this issue, based on the structure of the spent fuel storage canister, technologies for spent fuel storage canister cutting and content withdrawal was studied. Considering the hot-cell circumstance, the collecting and transferring of the contents after withdrawal, the collecting and disposal of the generated wastes, the feasible technology of cutting and withdrawal was established, and the storage canister cutting device and special tools was developed. Finally, the feasibility of cutting and withdrawal technology and the usability of cutting device and special tools were validated.