An ultrasonic diagnostic apparatus comprising an image display control section for displaying a first image representing positions of first ultrasonic scan planes at certain intervals of time based on information on positions of the first scan planes at certain intervals of time stored in a storage section, and displaying, based on detected information from a movement detecting section, a second image representing positions of second scan planes at certain intervals of time formed by performing a second 3D ultrasonic scan on a subject by an operator moving the ultrasonic probe, the image display control section displaying the first and second images so that the first scan planes and second scan planes have mutually corresponding positional relationships.