Abstract: With the rapid development of computer technology, finite element analysis is increasingly being applied to the study of sports biomechanics. The accurate establishment of the foot solid model is the first step of finite element analysis. However, the irregular shape of the foot and the complex bone and tissue structure make it difficult to directly measure it to obtain comprehensive finite element modeling data. This article takes the male normal foot 41 yards standard foot as the object, uses CT tomography to obtain the foot scan data, uses Mimics to perform threshold segmentation and rendering model processing on the foot scan data, and integrates Solidworks and Ansys Workbench's Design Modeler software to establish The solid model of each organizational structure of the foot is assembled through Boolean operations. The method of establishing a foot solid model based on CT graphics proposed by the research provides more possibilities for finite element analysis of the foot.