A long period of time is required to complete measurement performed by a subject information obtaining apparatus. A subject information obtaining apparatus includes a receiver (32) including a plurality of conversion elements (321) which receive acoustic waves and output reception signals and a supporting member (322) including the conversion elements disposed therein, a movement mechanism (34) configured to move the receiver, and a controller (2) configured to input a driving signal to the movement mechanism. The conversion elements are disposed in the supporting member such that directional axes of a number of the conversion elements are converged. The controller controls the movement mechanism so that a center position of a scanning trajectory of the receiver is changed.
