Abstract: The semi-empirical mold and the combination mold of Laasraoui-Jonas before peak stress and Jonson-Mehl-Avrami equation are used to describe the flow stress of aluminium sheet used for easy-open-can prepared by high-efficient melt-treatment respectively after the flow stress curves derived by dynamic thermal/mechanical simulation experiment.The results show that The semi-empirical mold cannot describe the flow stress well because the influences of deformation conditions on the hardening rate and the dynamic softening rate are not considered adequately.The combination mold can describe the flow stress well.