Provided is an ultrasonic diagnostic device that improves the frame rate (or volume rate), is resistant to movement, and is capable of constructing ultrasonic images at a high frame rate or a high volume rate. The ultrasonic diagnostic device comprises: a plurality of transducers arranged on an ultrasonic probe, that oscillate at the same time, and irradiate an ultrasonic beam on a subject and an ultrasonic image generation unit that generates a first ultrasonic data as a result of the plurality of transducers oscillating at the same time and irradiating a first ultrasonic beam on the subject, generates a second ultrasonic data as a result of the plurality of transducers oscillating at the same time and irradiating a second ultrasonic beam on the subject, and generates an acoustic image on the basis of the first ultrasonic data and the second ultrasonic data.