Provided are a control device, a radiation imaging apparatus, a radiation imaging method, and a radiation imaging program, capable of suppressing deterioration in image quality of a radiation image due to body motion of a subject. A control unit (40) of a radiation imaging apparatus (10) performs control of moving a radiation source (24), and emitting radiation (R) from the radiation source (24) at a plurality of positions at which incidence angles of the radiation (R) to a breast (N) of a subject (W) are different from each other. The control unit (40) performs control of causing a radiation detector (30) to detect the radiation (R) emitted from the radiation source (24) at the plurality of positions. The control unit (40) performs control of moving the radiation source (24) at a movement speed corresponding to a position of the radiation source (24) for a subject face proximate position.