An ultrasonic blood pressure measuring device measures the blood pressure of a blood vessel by performing transmission of an ultrasonic wave and reception of a reflected wave with respect to the blood vessel using an ultrasonic probe. A blood vessel position determination unit determines the position of the blood vessel with respect to the ultrasonic probe based on the reception signal of the ultrasonic probe. A blood pressure measurement execution unit executes blood pressure measurement based on the relative position of the blood vessel determined by the blood vessel position determination unit.
