An ultrasound imaging apparatus comprises an ultrasonic probe configured to transmit and receive an ultrasonic wave and a controller configured to control the ultrasonic probe such that an ultrasonic wave for imaging a contrast agent injected into an object and an ultrasonic wave for imaging a tissue movement of the object are transmitted in time division. A method of ultrasound imaging comprises transmitting a first ultrasonic wave and a second ultrasonic wave which hardly destroys bubbles of a contrast agent, obtaining blood flow information based on a signal generated from the first ultrasonic wave, and obtaining tissue movement information based on a signal generated from the second ultrasonic wave.