An ultrasonographic device S includes: an image processing unit (14) which forms an image in an examinee according to a higher harmonic component contained in a second ultrasonic signal coming from the examinee and based on a first ultrasonic signal transmitted into the examinee and a reception unit (13) which analog-processes a plurality of analog signals obtained by sampling, at a predetermined time interval, an output of an ultrasonic probe (2) which has received the second ultrasonic signal upon formation of the image by the image processing unit (14), thereby extracting the higher harmonic component.
