An ultrasonic measuring device includes a mounting member, a support unit, a plurality of ultrasonic element array units, a plurality of actuators, and a control unit. The mounting member is configured and arranged to be mounted on a test subject. The support unit is fixed on the mounting member. The ultrasonic element array units are supported on the support unit. The actuators are operatively coupled respectively to the ultrasonic element array units. Each of the actuators is configured and arranged to individually displace a corresponding one of the ultrasonic element array units with respect to the support unit. The control unit is configured to control the ultrasonic element array units to transmit and receive ultrasonic waves, the control unit being further configured to control the actuators.
