The invention relates to the field of the auxiliary equipment in broadcast station construction design, aims at overcoming the insufficiency of the prior art, and provides a simulation system and a simulation method thereof, which can simulate the running of a broadcast station and be used for the broadcast station construction and the integration, design, running and monitoring of a broadcast station in risk assessment. The structure of the invention comprises a human-machine conversation platform; a correlation design platform which is used for setting the correlation relationship between the subsystems of the broadcast station; an equipment database which is used for storing the parameters of selected equipment; a simulation system processing center; the simulation system processing center is respectively connected with the human-machine conversation platform, the correlation design platform and the equipment database. The system and the simulation method provide highly effective design guidance and management basis to broadcast workers and managers and an effective technical method for improving the reliability of the broadcast system.