Abstract: In view of the problems that the existing traffic virtual simulation systems have, such as they can neither simultaneously support real-time online simulation for multiple users, nor meet the practical requirements of virtual simulation teaching experiment and even be difficult to expand on a large scale. In this paper, from the aspects of system architecture and simulation engine, a multi-user-oriented micro-traffic simulation experiment system is for the first time investigated and devised. Furthermore, this paper tests the designed system from three performance indicators including the vehicle number change of single simulation engine simulation, the acceleration ratio change of single simulation engine simulation, and the concurrent execution of multiple simulation engines. The experimental results indicate that the traffic virtual simulation system devised in this paper can support the concurrent execution of multiple simulation engines and multiple simulation tasks as well as meet the simultaneous online simulation needs of multiple users.