Recently,Isogeometric Analysis(IGA)based on incremental methods for simulating the stamping process has been researched.To the best of our knowledge,however,few studies have combined IGA and One-step inverse approach which is based on total deformation theory of plasticity.A key step for One-step inverse IGA is to estimate a good initial solution.Traditional mesh-based initial solution algorithms for One-step inverse approach are not suitable for One-step inverse NURBS-based IGA.