To easily perform display and analysis functions with consideration for irradiation light without any necessity of redundant data recording or analysis processing by storing imaging data including information on the irradiation light of three-dimensionally reconstructed images of a photoacoustic diagnosis device while retaining convenience of general-purpose data.SOLUTION: A subject information acquisition apparatus includes: a light source； detection means that detects acoustic waves generated from a subject that receives the illumination light from the light source； processing means that generates characteristic information inside the subject using the acoustic waves； and recording means that records the characteristic information associated with information relating to the irradiation light.SELECTED DRAWING: Figure 1
