On the Desk-top Virtual Reality System, a software platform of the virtual experiment on handling and stability of vehicle is developed by means of OpenGL (Open Graphics Library). In this paper, the meanings of the virtual experiment and the reasons OpenGL was selected to develop the platform are introduced. The functions of the platform are also presented. Some key technical details of the software platform are also introduced, for example, in displaying three-dimmensional images, in changing the virtual experiment scene, in scaling, rotating and translating of view-port. The virtual experiment is a new method in vehicle motive simulation.