PROBLEM TO BE SOLVED: To provide a measuring device and a measuring method that can improve usefulness.SOLUTION: A measuring device 100 comprises a first light source 121 that emits light of a first wavelength, a second light source 122 that emits laser light of a second wavelength different from the first wavelength, a first light receiving part 131 that receives scattered light of the laser light of the second wavelength from a region to be examined, a second light receiving part 132 that receives transmitted light of the light of the first wavelength from the region to be examined, a third light receiving part 133 that receives transmitted light of the laser light of the second wavelength from the region to be examined, and a control part 140 that measures a blood flow rate on the basis of output of the first light receiving part 131 and measures an oxygen saturation degree on the basis of output of the second light receiving part 132 and the third light receiving part 133.SELECTED DRAWING: Figure 2【課題】有用性を向上可能な測定装置及び測定方法を提供する。【解決手段】測定装置１００は、第１波長の光を射出する第１光源１２１と、第１波長と異なる第２波長のレーザ光を射出する第２光源１２２と、被検部位からの第２波長のレーザ光の散乱光を受光する第１受光部１３１と、被検部位からの第１波長の光の透過光を受光する第２受光部１３２と、被検部位からの第２波長のレーザ光の透過光を受光する第３受光部１３３と、第１受光部１３１の出力に基づいて血流量を測定し、第２受光部１３２及び第３受光部１３３の出力に基づいて酸素飽和度を測定する制御部１４０と、を備える。【選択図】図２
