PROBLEM TO BE SOLVED: To allow a single apparatus to measure a plurality of kinds of biological information.SOLUTION: A biological information measurement apparatus 10 comprises: a light-emitting device LD1 emitting IR light IRa; a light-emitting device LD2 emitting red light Red; a light-receiving device 3 located at a position capable of receiving IR light IRa and red light Red transmitted through a finger 8A of a subject to receive the IR light IRa and the red light Red as transmitted light; a light-emitting device LD3 emitting IR light IRb and located at a position that allows reflection of IR light IRb from the finger 8A to be incident of the light-receiving device 3; a first measurement unit measuring an oxygen saturation on the basis of the transmitted light; and a second measurement unit measuring a blood flow rate on the basis of the reflection.SELECTED DRAWING: Figure 13COPYRIGHT: (C)2020,JPO&INPIT【課題】複数種類の生体情報を1つの装置で測定することができる。【解決手段】生体情報測定装置10は、IR光IRaを発光する発光素子LD1と、赤色光Redを発光する発光素子LD2と、被測定者の指8Aを透過したIR光IRa及び赤色光Redを受光する位置に設けられ、IR光IRa及びRed光を透過光として受光する受光素子3と、IR光IRbを発光すると共に、IR光IRbが指8Aで反射された反射光が受光素子3に入射する位置に設けられた発光素子LD3と、透過光に基づいて酸素飽和度を測定する第1の測定部と、反射光に基づいて血流量を測定する第2の測定部と、を備える。【選択図】図13