PROBLEM TO BE SOLVED: To provide a blood pressure data processing device capable of identifying factors for which surge blood pressure has occurred.SOLUTION: A blood pressure data processing device according to one embodiment of the current invention includes: a surge blood pressure acquisition part acquiring surge blood pressure; a blood pressure waveform extraction part which extracts from the surge blood pressure a blood pressure waveform of one heart rate or more; a waveform feature amount calculation part which calculates a waveform feature amount with respect to each of the blood pressure waveform of one heart rate separated from the blood pressure waveform of one heart rate or more or with respect to an average blood pressure waveform averaging the blood pressure waveform of one heart rate separated from the blood pressure waveform of one heart rate or more; and a factor identification part which identifies factors of the surge blood pressure from prescribed factors on the basis of the waveform feature amount.SELECTED DRAWING: Figure 7【課題】 サージ血圧が発生した要因を識別することができる血圧データ処理装置を提供する。【解決手段】 本発明の一態様に係る血圧データ処理装置は、サージ血圧を取得するサージ血圧取得部と、前記サージ血圧から一心拍以上の血圧波形を抽出する血圧波形抽出部と、前記一心拍以上の血圧波形から分離した一心拍分の血圧波形の各々について、または、前記一心拍以上の血圧波形から分離した前記一心拍分の血圧波形を平均した平均血圧波形について、波形特徴量を算出する波形特徴量算出部と、前記波形特徴量に基づいて、所定の要因の中から前記サージ血圧の要因を識別する要因識別部と、を備える。【選択図】図7