Abstract: A new type of spent fuel storage rack is developed independently. Based on the structure of the spent fuel storage rack, this paper demonstrates the security and reliability in terms of the criticality safety, thermal hydraulic and seismic analysis. In order to verify the design rationality and manufacturing feasibility of the spent fuel storage rack, a prototype is manufactured, and the supporting leg adjustment test and the mock-up fuel insertion test are carried out. The prototype manufacturing and test showed that the design is reasonable, the manufacture is feasible, and the new type of spent fuel storage rack can be fabricated in mass production.