Wireless communication method, device and system of hand-held terminal and electromagnetic sensitive region base station in nuclear power plant

The invention discloses wireless communication method, device and system of a hand-held terminal and an electromagnetic sensitive region base station in a nuclear power plant. The method comprises the following steps: receiving a radio communication signal transmitted from an electromagnetic wave sensitive region base station, and closing the radio wave transmission function; using a communication establishing optical signal which is transmitted by an optical transmission device and is subjected to optical modulation, and determining whether at least one optical receiving device in the electromagnetic wave sensitive region receives the transmitted communication establishing optical signal or not; transmitting an optically modulated upstream optical signal to the optical receiving device by using the optical transmission device if at least one optical receiving device can receive the transmitted communication establishing optical signal, and transmitting the upstream optical signal to the electromagnetic wave