A radiation irradiation detection system includes a radiation generation apparatus that includes a radiation generation unit, and an emission control unit, and a radiation detection apparatus that includes a radiation detector, in which the radiation detection apparatus further includes a first wireless communication unit that outputs an emission permitting signal for permitting the radiation to be emitted as a wireless signal, in which the radiation generation apparatus further includes a second wireless communication unit that receives the emission permitting signal, and, in which, in a case where the emission permitting signal is received, the emission control unit causes the pulsed radiation to be emitted, and controls emission of the pulsed radiation by using the emission permitting signal received by the second wireless communication unit in a period in which the radiation is not emitted during an emission period of the pulsed radiation.
