A radiographic imaging device comprising an imaging platform that includes an imaging surface on which a breast of a test subject is to be rested； a radiation irradiation section disposed to face the imaging surface and irradiates radiation at the imaging surface； a main radiation protection portion that is disposed at the side of a region between the radiation irradiation section and the imaging surface and that is adapted to protect the test subject from the radiation； and an auxiliary radiation protection portion disposed at a side portion of the main radiation protection portion, and that is movable between a protecting position, at which the auxiliary radiation protection portion is adapted to protect the test subject, and a non-protecting position, at which the auxiliary radiation protection portion is withdrawn from the protecting position.
