An object information acquiring apparatus including: an extraction processing unit that extracts signal components of mutually different first and second frequency bands from an electric signal based on an acoustic wave propagating from an object due to irradiation of the object with light； an image signal generating unit that generates a first image signal based on the signal component of the first frequency band extracted by the extraction processing unit, a second image signal based on the signal component of the second frequency band extracted by the extraction processing unit, and a third image signal based on the electric signal； and a weighting processing unit that performs weighting of a signal intensity of the third image signal on the basis of signal intensities of the first and second image signals.
