A radiation image capturing system including: a radiation image capturing apparatus which is portable and reads emitted radiation as image data; and a plurality of consoles, wherein when the radiation image capturing apparatus is attached to an attachment section which is associated with one console among the plurality of consoles, the one console determines whether the radiation image capturing apparatus is registrable, and when the one console determines that the radiation image capturing apparatus is registrable, the one console registers the radiation image capturing apparatus, and in a case where the radiation image capturing apparatus is already registered in another console among the plurality of consoles, the another console cancels registration of the radiation image capturing apparatus only when the one console registers the radiation image capturing apparatus.