Provided are an ultrasound measuring device that uses multiple ultrasound probes to acquire a plurality of images and synthesizes the same to produce a synthesized image of a subject, as well as a control method thereof. The ultrasound measuring device includes: multiple ultrasound probes having sensors to detect relative positions between the probes and a control part that uses a plurality of signals transmitted from the multiple ultrasound probes to generate a plurality of image signals and uses position information between respective pairs of the multiple ultrasound probes, which position information is transmitted from the corresponding sensors, to compensate for an error relating to the corresponding image signals from the plurality of image signals.
