High-speed train possesses high capacity, high speed, low consumption, low pollution, and it has become the development tendency of rail transportations. Parallel high-speed train provides the basic idea for constructing the transportation scenes for evaluation experiments and provides feasible approaches for carrying out experiments for evaluating the control plans of high-speed trains. The simulation test based on parallel high-speed train systems is proposed. First, the rule base is set up to model the influence of the environment for parallel high-speed train systems based on the simple-is-consistent principle. Second, the typical functions and the relations between the elements of the control system of the trains are analyzed. Third, the models of the typical operating scenes of the control systems of high-speed trains are established. Finally, the method for designing experiments for parallel high-speed train systems are studied and the operational mechanisms of parallel high-speed train systems are established.