PROBLEM TO BE SOLVED: To provide a measuring apparatus, measuring method, and measuring system capable of stably acquiring biological information of a subject.SOLUTION: The measuring apparatus includes a sensor group including a plurality of sensors each of which includes a light-emitting part for exiting measuring light, a light-receiving part for detecting scattering light according to the measuring light, and a package on which the light-emitting part and the light-receiving part are mounted, where the plurality of sensors are mounted on a flexible board in an aligned state.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】被検者の生体情報を安定して取得できる測定装置、測定方法及び測定システムを提供する。【解決手段】測定光を射出する発光部と、測定光に応じた散乱光を検出する受光部と、発光部と受光部とが実装されるパッケージとを有するセンサを複数含むセンサ群を備え、複数のセンサは、フレキシブル基板に配列して実装される。【選択図】図1