“In the spent fuel storage pool of the reprocessing plant, a suspended basket is used to store and transport spent fuel components, which enhances the transport capacity and has good safety and economy. A storage and transportation basket capable of loading 8 boxes of spent fuel assemblies at once was designed based on the typical structural parameters of spent fuel assemblies used in commercial nuclear power plants in China. A critical safety analysis was conducted on the storage and transportation basket of fully loaded spent fuel assemblies using SuperMC software, followed by seismic analysis using ANSYS finite element software. The results of the critical safety analysis indicate that even if the basket loaded with spent fuel assemblies is tightly arranged in the infinite spent fuel storage pool, the highest keff of the storage pool is only 0.906; The seismic analysis results show that under a design seismic acceleration of 0.3 g, the maximum structural stress of the suspended basket is 7.92 MPa, and the maximum deformation is 0.32 mm, which does not affect its function. Therefore, the design of the storage and transportation basket is reasonable and can meet the basic safety requirements of the spent fuel pool storage and transportation basket in the reprocessing plant.”