A radiation image capturing system comprising: a bucky apparatus on which three portable radiation image capturing apparatus can be loaded; a radiation irradiating apparatus which is able to simultaneously irradiate radiation to the three portable radiation image capturing apparatuses loaded on the bucky apparatus; and a console which is able to control the portable radiation image capturing apparatuses, and which obtains capturing order information and generates a radiation image based on image data transferred from the portable radiation image capturing apparatuses to be associated with the capturing order information; wherein the bucky apparatus includes a reading unit which reads identification information of the portable radiation image capturing apparatuses loaded in a loading position in which the portable radiation image capturing apparatuses are loaded, and the bucky apparatus notifies the identification information to the console when the reading unit reads the identification information of the portable radiation image capturing apparatuses loaded in the loading position; wherein the console allows the three portable radiation image capturing apparatuses to advance to a capturing possible state when the console judges based on the capturing order information that capturing in the capturing order information is long length capturing which is performed with the three portable radiation image capturing apparatuses loaded in the bucky apparatus, and when the console judges whether long length capturing can be performed based on the identification information of the three portable radiation image capturing apparatuses loaded in the loading position, the identification information notified from the bucky apparatus; and wherein, when the console judges that the long length capturing cannot be performed, the console notifies that the long length capturing cannot be performed. a bucky apparatus on which three portable radiation image capturing apparatus can be loaded; a radiation irradiating apparatus which is able to simultaneously irradiate radiation to the three portable radiation image capturing apparatuses loaded on the bucky apparatus; and a console which is able to control the portable radiation image capturing apparatuses, and which obtains capturing order information and generates a radiation image based on image data transferred from the portable radiation image capturing apparatuses to be associated with the capturing order information; wherein the bucky apparatus includes a reading unit which reads identification information of the portable radiation image capturing apparatuses loaded in a loading position in which the portable radiation image capturing apparatuses are loaded, and the bucky apparatus notifies the identification information to the console when the reading unit reads the identification information of the portable radiation image capturing apparatuses loaded in the loading position; wherein the console allows the three portable radiation image capturing apparatuses to advance to a capturing possible state when the console judges based on the capturing order information that capturing in the capturing order information is long length capturing which is performed with the three portable radiation image capturing apparatuses loaded in the bucky apparatus, and when the console judges whether long length capturing can be performed based on the identification information of the three portable radiation image capturing apparatuses loaded in the loading position, the identification information notified from the bucky apparatus;