This study proposes an ultrasonic inspection technique for detecting disbonds in adhesively bonded CFRP/aluminum joints using pulsed laser scanning. A specimen with artificially induced square disbonds was scanned by a pulsed laser for ultrasound generation, and the propagated waves were received by a transducer placed on its surface. A series of images of the traveling waves were obtained by processing the received signals. An initial, quick inspection was performed using the low-frequency Lamb wave. Changes in the propagation of the Lamb wave were observed at the regions of the disbonds, and disbonds larger than 5×5 mm were successfully detected. The second, detailed inspection of the detected region of disbond was performed using high-frequency through-transmission ultrasonic method. The shape of the disbond was precisely imaged, and the evaluated size of the disbond matched well with the actual size. We demonstrated the efficiency and the feasibility of the proposed technique for the inspections of adhesively bonded CFRP/aluminum joints.