An ultrasound diagnostic apparatus (1, 1A) comprising: a display unit that has an image display region for displaying an acquired ultrasound diagnostic image; an operation unit that is disposed so as to be superimposed on the display unit and is configured by a touch sensor used by a user to perform an input operation; an operation target generation unit that generates an operation target displayed on the display unit according to an operation by the operation unit; and an operation target receiving unit that, in a case in which the operation target generation unit generates an operation target that is superimposed on the ultrasound diagnostic image displayed in the image display region and is movable, prohibits an operation of operation targets other than the movable operation target and receives an operation performed on any position in the image display region through the operation unit as an operation of selecting the movable operation target; the ultrasound diagnostic apparatus being characterized in that, in a case in which a plurality of the movable operation targets are simultaneously displayed so as to be superimposed on the ultrasound diagnostic image: the operation target receiving unit sequentially fixes the operation of the movable operation targets according to a predetermined sequence: or the operation target generation unit generates a switching button for switching the operation targets which are displayed on the display unit and whose operation is received by the operation target receiving unit, and the operation targets whose operation is received by the operation target receiving unit are sequentially switched whenever the switching button is operated. a display unit that has an image display region for displaying an acquired ultrasound diagnostic image; an operation unit that is disposed so as to be superimposed on the display unit and is configured by a touch sensor used by a user to perform an input operation; an operation target generation unit that generates an operation target displayed on the display unit according to an operation by the operation unit; and an operation target receiving unit that, in a case in which the operation target generation unit generates an operation target that is superimposed on the ultrasound diagnostic image displayed in the image display region and is movable, prohibits an operation of operation targets other than the movable operation target and receives an operation performed on any position in the image display region through the operation unit as an operation of selecting the movable operation target; the ultrasound diagnostic apparatus being characterized in that, in a case in which a plurality of the movable operation targets are simultaneously displayed so as to be superimposed on the ultrasound diagnostic image: the operation target receiving unit sequentially fixes the operation of the movable operation targets according to a predetermined sequence: or the operation target generation unit generates a switching button for switching the operation targets which are displayed on the display unit and whose operation is received by the operation target receiving unit, and the operation targets whose operation is received by the operation target receiving unit are sequentially switched whenever the switching button is operated. the operation target receiving unit sequentially fixes the operation of the movable operation targets according to a predetermined sequence: or the operation target generation unit generates a switching button for switching the operation targets which are displayed on the display unit and whose operation is received by the operation target receiving unit, and the operation targets whose operation is received by the operation target receiving unit are sequentially switched whenever the switching button is operated.