A blood pressure measurement device estimates blood pressure based on first internal pressure of cuff during a first period and Korotkoff sound during the first period or based on the first internal pressure during the first period and first pulse wave during the first period； calculates timings when the first pulse wave satisfies a predetermined condition, a third period between timings, and pressure of first internal pressure during the third period and generates first information where the third period and the pressure are associated； generates blood pressure information where the calculated first information and the estimated blood pressure are associated； and specifies the first information matching or resembling second information generated based on second internal pressure of the cuff during second period and second pulse wave during the second period, and estimates the blood pressure associated with the specified first information as blood pressure during the second period.
