Disclosed are an apparatus and a method of measuring a blood pressure of an examinee while detecting the body activity of the examinee. A pressurizing unit 4 of a blood pressure gauge has first and second driving modes for pressurizing a cuff 1. A central processing unit 8 classifies signals, which represent the movement, the position, or the direction of the blood pressure gauge detected by a sensor 5 installed in a body of the blood pressure gauge, into a plurality of groups, and selectively performs the first driving mode or the second driving mode according to signal bands classified into the groups. The central processing unit is configured to generate blood pressure data by performing the operation based on time to measure the blood pressure using a blood pressure measuring unit 6 and a detected signal band of the sensor received corresponding to the time to measure the blood pressure, so that the variation in the blood pressure of the examine is exactly determined according to the activity degree and the posture of the examinee.血圧計の加圧部4がカフ1を加圧する第1駆動モードと第2駆動モードを有し、演算処理部8は血圧計の本体に設置されるセンサー部5により感知される血圧計の遊動や位置方向の信号を複数の群に分けて特定し、前記複数の群に分けられた信号帯域によって前記第1駆動モードと第2駆動モードが選択的に駆動するように構成し、演算処理部は血圧測定部6から血圧を測定する時間と該血圧を測定する時間に応じて受信される前記センサーの感知信号帯域を連係演算して血圧情報データを作成する。これにより被測定者の動き強度や姿勢の状態による血圧の変化を正確に判断できる血圧測定装置を提供することができる。
