A blood pressure measuring apparatus includes a cuff member (2) which can be attached to and detached from a blood pressure measurement portion, and a cuff main body (1) including a compression air bladder (8) for pressing the blood pressure measurement portion, a sub air bladder (7), and a pulse wave detection air bladder (5). After pressurization is performed by compression air bladder pressurizing/depressurizing means (22, 23) and sub air bladder pressurizing/depressurizing means (27, 26), depressurization is controlled at the same depressurization rate, thereby reducing the cuff-edge effect and obtaining a pulse wave signal.