An ultrasound imaging apparatus includes an ultrasonic probe configured to transmit an ultrasonic beam to an object and receive a reflective ultrasonic signal, a controller configured to control the ultrasonic probe such that the ultrasonic beam is focused on focus positions in at least two directions, each of which is substantially perpendicular to a transmission and reception direction, an image generation unit configured to generate an ultrasonic image based on the reflective ultrasonic signal and a display unit configured to display the at least two focus positions or the focus position in the direction which is substantially perpendicular to the ultrasonic image with the ultrasonic image.