With the rapid development of modern automotive technology, users’ requirements for cars are no longer limited to basic transportation functions, but more focused on the comfort and smoothness of driving and riding. Studying the five stiffness characteristics of the tire in different states is of great significance for improving the handling stability and ride comfort of vehicles. Firstly, a two-dimensional finite element simulation model of a certain type of tire was established using ABAQUS finite element software, and a three-dimensional finite element model of the tire was obtained by rotating the two-dimensional model. Then, using the established finite element model of the tire, the five stiffness characteristics of the tire were simulated and analyzed. This method not only provides fast and efficient data support for tire enterprises, greatly improving development efficiency, but also provides important technical support for vehicle enterprises to study the smoothness and comfort characteristics of automobiles. The research results have important engineering application value.