Provided is an object information acquiring apparatus including: a holding member that has a curvature and holds an object a conversion element that receives an acoustic wave propagating from the object via the holding member and outputs an electrical signal a driving unit that moves at least one of the conversion element and the holding member so that an acoustic wave reception surface of the conversion element is not parallel to a tangential plane of the holding member at a position at which a normal line of the acoustic wave reception surface drawn from the conversion element crosses the holding member and an information processor that acquires specific information inside the object using the electrical signal.
