Abstract: The elastoplastic model of soil has the characteristics of profound and abstract theory, obscure knowledge and complex calculation formula in the teaching of advanced soil mechanics. It is one of the important models of soil constitutive relationship. In order to show the abstract elastoplastic model knowledge intuitively and vividly to help students understand, the teaching attempt is carried out by using the graphic method and excel table method. At the same time, the convenient calculation and drawing function of Excel is used to calculate the stress-strain relationship of soil under different stress paths, so as to improve the classroom teaching efficiency, enrich the classroom content and achieve better teaching effects.