Abstract: Three-dimensional simulation of passenger motions in metro station monitoring system is an important part of virtual driving simulation system. The simulation provides the necessary scene support for the virtual driving simulation system. This article built three-dimensional models and basic motion models of passengers with 3Dmax software, based on that, designed the appropriate scene driver program by OpenSceneGraph(OSG) three-dimensional rendering engine, implemented the three-dimensional simulation of passenger motions by using proper scene driver programs.