A photoacoustic apparatus disclosed in the present specification includes: a light source configured to emit light an acoustic wave transmission unit configured to transmit an acoustic wave to a specific area a photoacoustic wave reception unit configured to receive a photoacoustic wave generated by a subject due to emission of the light, which is emitted from the light source, to the subject and configured to output a time-series photoacoustic signal an echo reception unit configured to receive an echo generated due to reflection, in the subject, of the acoustic wave transmitted from the acoustic wave transmission unit and configured to output a time-series echo signal and a processing unit configured to acquire, based on the time-series photoacoustic signal and the time-series echo signal, optical property information in which information a component corresponding to a reflected wave of the photoacoustic wave generated in the specific area is reduced.
