The utility model provides a generator timing control system simulation device, is equipped with governor of hydraulic turbine simulator, follow-up system simulation device, hydraulic turbine characteristic simulator, generator and a system simulation device. The governor of hydraulic turbine simulator is equipped with frequency measurement module, power calculation module, frequency difference calculation module, frequency blind spot simulator, power control PID module, frequency control PID module, power setting and sets up module, power difference calculation module, power blind spot simulator, adder, operation mode switch ware and speed regulator operational mode arbiter. Follow-up system simulation device is equipped with the subtracter and the stator is opened and sequence closing characteristic analog module. Hydraulic turbine characteristic simulator is equipped with hydraulic turbine water hammer characteristic analog module and output of hydraulic turbine characteristic analog module. The accurate emulation to hydraulic turbine's timing control system property can be realized to this simulator.