A subject information acquisition apparatus includes a light emission unit, a probe, and image generation unit, and a display control unit. The light emission unit is configured to emit light to a subject. The probe is configured to receive an acoustic wave generated from the subject to which the light is emitted, thereby generating a signal. The image generation unit is configured to generate a plurality of frame images based on signals acquired at a plurality of respective relative positions of the probe to the subject and resulting from acoustic waves from the subject. The display control unit is configured to selectively display images of an area common to consecutive frames in the plurality of frame images at a display unit.
