A blood pressure measurement apparatus includes: a search unit that comes into contact with a living body and receives a signal from the living body a blood vessel detection section that detects a blood vessel based on the signal a teaching information generation section that generates teaching information when no blood vessel is detected by the blood vessel detection section at a first site in which the search unit comes into contact with the living body so as to move the search unit in a first direction intersecting the median line of the living body starting from the first site and a blood pressure calculation section that calculates a blood pressure of the living body based on the signal when the blood vessel is detected by the blood vessel detection section at the first site in which the search unit comes into contact therewith.