A pulse wave measuring section (110) for measuring a pulse wave signal of a user, an electrocardiogram signal measuring section (120) for measuring an electrocardiogram signal of a user, and a pulse wave measuring section And a processing circuit (101) for estimating a blood pressure value of the user by using the pulse wave signal of the user, and the processing circuit (101) acquires a pulse signal feature amount using the users pulse wave signal, (B) acquiring an electrocardiogram signal feature amount using the electrocardiogram signal of the user, (c) acquiring a pulse wave propagation time using the users pulse wave signal and the users electrocardiographic signal , (D) selecting a blood pressure group indicating a relationship between the pulse wave propagation time of the user and the blood pressure using the pulse signal feature amount, the electrocardiographic signal feature amount, and the pulse wave propagation time, (E) the blood pressure group, the pulse signal feature amount, the electrocardiographic signal feature amount, the pulse wave transmission Using the time and estimates the blood pressure of the user.ユーザの脈波信号を測定する脈波測定部(110)と、ユーザの心電信号を測定する心電信号測定部(120)と、前記ユーザの脈波信号と前記ユーザの心電信号とを用いて、前記ユーザの血圧値を推定する処理回路(101)とを備え、前記処理回路(101)は、(a)前記ユーザの脈波信号を用いて、脈派信号特徴量を取得し、(b)前記ユーザの心電信号を用いて、心電信号特徴量を取得し、(c)前記ユーザの脈波信号と前記ユーザの心電信号とを用いて、脈波伝播時間を取得し、(d)前記脈派信号特徴量と、前記心電信号特徴量と、前記脈波伝播時間とを用いて、前記ユーザの脈波伝播時間と血圧との関係を示す血圧グループを選択し、(e)前記血圧グループと、前記脈派信号特徴量と、前記心電信号特徴量と、前記脈波伝播時間とを用いて、前記ユーザの血圧値を推定する。