PROBLEM TO BE SOLVED: To determine features of an organism based on biological information.SOLUTION: A blood pressure measuring device includes a blood pressure measuring part for acquiring time series data of a blood pressure value changing in linkage with a heartbeat, a detection part for detecting one or more surge sections containing one surge from the time series data, an extraction part for extracting one or more feature amounts in each surge, and a classification part for classifying the surge based on the feature amount.SELECTED DRAWING: Figure 1【課題】生体情報に基づいて生体の特徴を判定することができる、【解決手段】血圧測定装置であって、心拍に連動して変化する血圧値の時系列データを得る血圧測定部と、時系列データから１つのサージを含むサージ区間を１以上検出する検出部と、サージごとに１以上の特徴量を抽出する抽出部と、特徴量に基づいてサージを分類する分類部と、を備える。【選択図】図１
