Nuclear power plant group pile safety system

The invention is applicable to the technical field of 1000MW nuclear power and provides a nuclear power plant group pile safety system. The system comprises subsystems and a main system. The subsystems are used for controlling the operation of the nuclear power plants in the nuclear power plant group. One subsystem is used for controlling the operation of one nuclear power plant. The main system is connected with the subsystems to be used for controlling the operation of the nuclear power plant corresponding to the paralyzed subsystem when any one of the subsystems is paralyzed. By means of the system, potential safety hazards of the nuclear power plant can be reduced.