This neutron capture therapy system has: an irradiation room provided with an irradiation port for irradiating neutron rays; and a CT device for imaging a patient from inside a second operation room different form the irradiation room, the patient being imaged in the posture in which the patient is irradiated with neutron rays.中子捕獲治療系統具有:照射室,設置有照射中子束之照射口;及CT裝置,在與前述照射室不同的第2作業室的室內拍攝擺出照射前述中子束時之姿勢之患者。