PROBLEM TO BE SOLVED: To provide a biological information acquisition device capable of accurately acquiring biological information of a driver such as electrocardiographic information.SOLUTION: This biological information acquisition device is provided with a first electrocardiographic sensor electrode 210 and a second electrocardiographic sensor electrode 220, a main airbag 270 which displaces the electrocardiographic sensor electrodes 210 and 220 by inflation and deflation, and a control processing section 100 where a measurement pressure value measured by a seat type back pressure distribution sensor 261 provided near the electrocardiographic sensor electrodes 210 and 220 are input, which controls the inflation/deflation of the main airbag 270 and which determines the state of the living body based on electric signals detected by the electrocardiographic sensor electrodes 210 and 220, wherein the control processing section 100 is characterized in inflating/deflating the main airbag 270 according to the measured pressure value measured by the seat type back pressure distribution sensor 261 and acquiring the electric signals detected by the electrocardiographic sensor electrodes 210 and 220.COPYRIGHT: (C)2009,JPO&INPIT【課題】ドライバーに係る心電情報などの生体情報を的確に把握することできる体情報取得装置を提供する。【解決手段】第1心電センサー電極210および第2心電センサー電極220と、膨張収縮することにより心電センサー電極210および220を変位させるメインエアバッグ270と、心電センサー電極210および220近傍に設けられるシート型背面圧力分布センサー261で測定される測定圧力値が入力されると共に、メインエアバッグ270の膨張収縮を制御し、心電センサー電極210および220で検出される電気信号に基づいて生体状態の判定を行う制御処理部100と、を有し、制御処理部100は、シート型背面圧力分布センサー261で測定される測定圧力値に応じてメインエアバッグ270を膨張収縮させた上で、心電センサー電極210および220で検出される電気信号を取得することを特徴とする。【選択図】図9