An ultrasound diagnostic apparatus includes: an ultrasound probe； a transmission section which supplies the probe with a drive signal； a receiving section which receives a reception signal sent from the probe； an image generation section which generates frame image data obtained by converting the reception signal； an intermediate image generation section which detects a moved image, identifies a move source and a move destination of the detected image based on a plurality of frame image data, and generates intermediate image data which allocates the moved image at a position obtained by intermediating the identified move source and the identified move destination of the detected image； and a display section which displays the ultrasound diagnosis image, wherein the display section displays the ultrasound diagnosis image so that intermediate image is inserted and displayed in a chronological order into image based on the frame image data.
