PROBLEM TO BE SOLVED: To provide a biological information detector capable of continuously detecting biological information while reducing a burden at the time of mounting for a long period of time, and the like.SOLUTION: A biological information detector includes: a band section 10； a case section 30 fitted to the band section 10； a sensor section 40 provided to the case section 30； and a processing section 200 being provided to the case section 30 and detecting biological information on the basis of a detection signal from the sensor section 40. The band section 10 has an inner surface 11 having a first curved surface shape at a side facing an inspection object at the time of mounting. The case section 30 has an outer surface 31 having a second curved surface shape and facing the inner surface 11 of the band section 10.SELECTED DRAWING: Figure 6【課題】長時間装着時の負担を軽減しながら連続した生体情報の検出が可能な生体情報検出装置等の提供。【解決手段】生体情報検出装置は、バンド部１０と、バンド部１０に取り付けられるケース部３０と、ケース部３０に設けられるセンサー部４０と、ケース部３０に設けられ、センサー部４０からの検出信号に基づいて生体情報を検出する処理部２００を含む。バンド部１０は、装着時に被検体に対向する側に第１曲面形状の内面１１を有し、ケース部３０は、バンド部１０の内面１１に対向する第２曲面形状の外面３１を有する。【選択図】図６
