On the basis of single piece ring rolling process, numerical simulation is conducted on the forming process of double piece ring rolling. By analyzing the stress-strain distribution, geometric shape, and forming size of the forming process, it is shown that the stress-strain distribution law is generally consistent with the deformation process of single piece ring rolling, and the geometric shape and forming size meet the requirements. By comparing and analyzing the material utilization rate of single and double piece ring rolling forming, it is found that the material utilization rate of the double piece ring rolling forming process is improved compared to the single piece ring rolling forming process, and the production efficiency is improved and the cost is reduced. The proposal of this process provides an important theoretical basis for future production practice.