This paper presents analysis method to calculate internal heat generation of a commercial tire. Simplified tire model was created, and this tire model decreases calculation time dramatically and proves the developed material model be working well. The material model, created by ABAQUS user’s subroutine, includes hyperelastic and viscoelastic material characteristic and can calculate hysteresis loss. 2D simplified tire model had compressed many times, and shows that temperature of side wall and tread increase differently.