In order to apply the virtual prototyping technology to the research and development of the stacking machine simulation system, the stacking device of the stacker is taken as the research object, and the virtual prototype model of the main components of the stacker is established. The structure of the overall scheme of the stacker is determined. The stacking device is modeled and the virtual prototype model of the stacker is established. On the basis of mixing theory of material yard, the mathematical model of material pile is set up. The mathematic model is combined with the stacking process parameters to determine the motion of the stacker. Through the dynamic simulation of the typical working conditions of the stacking device, the key technical parameters such as the variation range of the thrust of the pitch cylinder and the force of the relevant hinge are obtained. It provides a reference for the selection of relevant parts. The results show that the virtual prototype simulation model of the stacking device is correct, and the reclaiming device is stable in the working process. Therefore, the virtual prototype technology is applied in the research and development of circular material stacker reclaimer, and the data processing results are more intuitive. The processability is improved and costs are reduced.