Abstract: The application for the technology of current visualized simulation is introduced in this paper. Then the problems in the simulation are analyzed. Concerning the weak real-time ability and extendibility in current simulation, the prototype system for cooperation simulation based on network training is built by virtue of flexibility and reusability of HLA in the designing of distributed system. The system combined with fashionable scene rendering technology solves the problems of scene synchronization, data publishing and 3D scene rebuilding successfully in the simulation system. Some referencing value is expected for the system design of large-scaled visualized simulation.