Provided is an object information acquiring apparatus, having: an ultrasound transmitting element a plurality of transducers each detecting a first acoustic wave generated by light, which is radiated into an object, and outputting a first electric signal, and detecting a second acoustic wave generated by an ultrasound wave, which is transmitted from the ultrasound transmitting element and which is scattered inside the object, and outputting a second electric signal a support supporting the plurality of transducers so that directivity axes of the transducers are concentrated and a processor acquiring property information on the object based on the first electric signal and the second electric signal respectively.
