A blood pressure estimation apparatus includes: a pulse wave measurement unit measuring a user's pulse wave signal; an electrocardiogram signal measurement unit measuring a user's electrocardiogram signal; and a processing circuit estimating a user's blood pressure value by using the pulse wave and electrocardiogram signals, wherein the processing circuit (a) acquires a pulse wave signal feature by using the pulse wave signal, (b) acquires an electrocardiogram signal feature by using the electrocardiogram signal, (c) acquires a pulse wave propagation time by using the pulse wave and electrocardiogram signals, (d) selects a blood pressure group indicating a relationship between a pulse wave propagation time and blood pressure of the user by using the pulse wave signal feature, electrocardiogram signal feature, and pulse wave propagation time, and (e) estimates the blood pressure value by using the blood pressure group, pulse wave signal feature, electrocardiogram signal feature, and pulse wave propagation time.