The ultrasound diagnostic apparatus includes: an ultrasound transceiver supplying a driving signal to at least one transducer included in a probe and acquiring ultrasound data corresponding to at least one ultrasound echo signal received by the transducer a controller performing control to acquire the ultrasound data based on at least one first ultrasound echo signal acquired by the ultrasound transceiver in response to an ultrasound signal transmitted to an object by the probe at a first position and at least one second ultrasound echo signal acquired by the ultrasound transceiver in response to an ultrasound signal transmitted to the object by the probe at a second position that is different from the first position and an image processor generating an ultrasound image by using the ultrasound data.