The NCS System plays an important role in the TES Network. So the NCS operators and managers have to guarantee the reliability and security of the NCS system. In order to improve the operators and managers' qualification and run the TES network well, the simulation training system is developed, by using the up-to-date multimedia, computer, visualization, interactive simulation, RDS and OOP technology, and so on. The simulation training system simulates the NCS System vividly, and the operators and managers are able to learn the real NCS System through it.