Provided is a photoacoustic image generation apparatus that can suppress degradation in image quality even in a case where some detections are inappropriately performed in a case where the detection is performed a plurality of times for acquiring detection signals for one photoacoustic image. In a case where a plurality of times of detections are required to acquire detection signals for one photoacoustic image, piezoelectric elements to be used and piezoelectric elements to be suspended are set alternately and continuously in an order of arrangement of the piezoelectric elements of a piezoelectric element array for the piezoelectric elements to be used for one time of detection, and the detection elements to be used are switched for each time of detection.
