In order to solve the problem of the training equipment shortage, difficulty of organization is and massive operation cost of real vehicle training on fire control system, the fire control virtual training software based on WinCE is developed in this paper, according to the requirement of tactics and performance from real vehicle training. Based on the brief introduction of WinCE and its development environment, this paper focuses on introducing the basement of software development environment of virtual training system. Detailed design method of major components is also proposed. Application test indicates that the simulator runs stably, which greatly improves the efficiency of equipment training.