To make it possible to measure biological information with disturbance taken into account compared with when biological information is processed irrespective of the degree of correlation between a first pulse wave signal and a second pulse wave signal.SOLUTION: A biological information measurement device 10 includes an oxygen saturation measurement unit 14 which acquires a first pulse wave signal based on light which is emitted from a first light emission portion of a photoelectric sensor 11 and a second pulse wave signal based on light which is emitted from a second light emission portion of the photoelectric sensor 11 so as to calculate an oxygen saturation of the living body using at least one of the first pulse wave signal and the second pulse wave signal on the basis of the degree of correlation between the first pulse wave signal and the second pulse wave signal.SELECTED DRAWING: Figure 4【課題】第１の脈波信号及び第２の脈波信号の相関度合いに関係なく生体情報を処理する場合と比較して、外乱を考慮して生体情報を測定することができる。【解決手段】生体情報測定装置１０は、光電センサ１１の第１の発光部から出射されて生体を透過した光に基づく第１の脈波信号と、光電センサ１１の第２の発光部から出射されて生体を透過した光に基づく第２の脈波信号と、を取得し、第１の脈波信号及び第２の脈波信号の相関度合いに基づき、第１の脈波信号及び第２の脈波信号の少なくとも一方を用いて、生体の酸素飽和度を算出する酸素飽和度測定部１４を備える。【選択図】図４
