The subloading surface model would possess the most pertinent physical and mathematical structures among various existing elastoplastic constitutive models, and thus it has been widely applied to the analyses of deformation behavior of soil structures in the society of basic research for mechanics. However, it has not been applied sufficiently to the mechanical design of soil structures in the industrial world. The reason for this present situation would be the insufficiency in the information for the material parameters in the subloading surface model. Aiming at the extensive application of the subloading surface model in the industrial filed, the basic information for the determination of material parameters are given in this article. First, examining reports or literatures on the application of the subloading surface model to soils, the lists and graphs of the material parameters are provided. Further, the trends of material parameters with the variation of void ratio are described analyzing these lists and graphs.