An apparatus for measuring a blood pressure of a living subject, including an inflatable cuff which has an inside surface adapted to contact a body surface of the subject and an outside surface exposed to an ambient air, and which is adapted to be wound around a portion of the subject to press the portion of the subject, a temperature sensor which is provided in the inside surface of the cuff and detects, in a state in which the cuff is wound around the portion of the subject, a temperature of the portion of the subject, and a display device which displays the temperature of the portion of the subject detected by the first temperature sensor.