Nuclear power station radiation monitoring system

The invention discloses a nuclear power station radiation monitoring system, and the system comprises at least two in-situ radiation monitors which are mutually redundant and are used for obtaining preset radiation information of the same region; the two mutually redundant industrial personal computers are used for receiving the radiation information; each industrial personal computer is respectively connected with at least two paths of power supplies; at least two communication modules which are mutually redundant, wherein each in-situ radiation monitor is in communication connection with the two industrial personal computers through each communication module; and the power supply redundancy module is used for selecting one path of power supply to supply power, and each communication module is connected with at least two paths of power supplies through the power supply redundancy module. The radiation monitoring system provided by the invention not only comprises circuit redundancy and equipment redundancy d