An ultrasound diagnostic apparatus is provided. The ultrasound diagnostic apparatus includes a physical quantity calculating unit configured to calculate a physical quantity related to elasticity of biological tissue of a subject based on echo signals obtained by transmission/reception of ultrasound, an elastic image data generating unit configured to generate elastic image data having information indicative of a display form corresponding to the physical quantity calculated, a display unit configured to display an elastic image having the display form corresponding to the calculated physical quantity, and a calculating unit configured to calculate values related to a cardiac pulsation of the subject, wherein the calculated physical quantity and the information indicative of the display form correspond to each other such that the information indicative of the display form changes according to the calculated physical quantity over a range of physical quantities set according to the cardiac pulsation values.
