the simulation technology of infinite volume method has been introduced, implemented in the commercial computer program MSC.SuperForge, an approach has been developed to simulate the extrusion forming of aluminium profile with its sequence number of FD-JLB8001 produced by an enterprise and it has been showed a good agreement in tendency with the experimental one. As a result of it ,the design method supported by this technology is feasible for the extrusion die used in the real production of the non-hollow profile.