A tomosynthesis imaging support apparatus comprising: an information acquisition unit that acquires at least one information item of subject information indicating a feature of a subject, imaging condition information indicating imaging conditions at the time of tomosynthesis imaging, or positioning information indicating positioning of the subject in a case where a plurality of projection images corresponding to each of a plurality of radiation source positions are acquired by performing the tomosynthesis imaging in which a radiation source is moved relative to a detection unit in order to emit radiation to the subject at the plurality of radiation source positions according to movement of the radiation source; a body movement feature derivation unit that derives body movement feature information indicating a feature of body movement of the subject that occurs at the time of the tomosynthesis imaging; a storage that stores correspondence information in which at least one information item of the subject information, the imaging condition information, or the positioning information corresponds to the body movement feature information; a body movement feature acquisition unit that acquires at least one information item of new subject information, new imaging condition information, or new positioning information, and acquires the body movement feature information indicating the feature of body movement of the subject that occurs at the time of new tomosynthesis imaging according to the acquired information, with reference to the correspondence information before performing the tomosynthesis imaging; an advice derivation unit that derives an imaging advice at the time of the tomosynthesis imaging according to the acquired body movement feature information; and a display controller that displays, at the time of the tomosynthesis imaging, the acquired body movement feature information or the imaging advice. an information acquisition unit that acquires at least one information item of subject information indicating a feature of a subject, imaging condition information indicating imaging conditions at the time of tomosynthesis imaging, or positioning information indicating positioning of the subject in a case where a plurality of projection images corresponding to each of a plurality of radiation source positions are acquired by performing the tomosynthesis imaging in which a radiation source is moved relative to a detection unit in order to emit radiation to the subject at the plurality of radiation source positions according to movement of the radiation source; a body movement feature derivation unit that derives body movement feature information indicating a feature of body movement of the subject that occurs at the time of the tomosynthesis imaging; a storage that stores correspondence information in which at least one information item of the subject information, the imaging condition information, or the positioning information corresponds to the body movement feature information; a body movement feature acquisition unit that acquires at least one information item of new subject information, new imaging condition information, or new positioning information, and acquires the body movement feature information indicating the feature of body movement of the subject that occurs at the time of new tomosynthesis imaging according to the acquired information, with reference to the correspondence information before performing the tomosynthesis imaging; an advice derivation unit that derives an imaging advice at the time of the tomosynthesis imaging according to the acquired body movement feature information; and a display controller that displays, at the time of the tomosynthesis imaging, the acquired body movement feature information or the imaging advice.