PROBLEM TO BE SOLVED: To provide a biological information measurement sensor and a toilet seat for measuring biological information that can accurately measure the biological information of a user.SOLUTION: A biological information measurement sensor according to the present disclosure comprises: a housing in which a recessed part including an opening part is formed a pulse wave sensor housed in the recessed part and an electrode provided at an upper part of the housing to measure electrocardiographic waveforms. The pulse wave sensor comprises a light emitting part and a light receiving part. The electrode is provided at the upper part of the housing and at a portion of the periphery of the opening part. A toilet seat for measuring biological information includes the biological information measurement sensor on an upper surface of the toilet seat.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】本開示は、使用者の生体情報を正確に計測することができる生体情報計測センサおよび生体情報計測用便座を提供することを目的とする。【解決手段】本開示にかかる生体情報計測センサは、開口部を有する凹部が形成される筐体と、凹部に収容される脈波センサと、筐体の上部に設けられる心電波形を計測する電極と、を備え、脈波センサは、発光部と受光部とを有し、電極は、筐体の上部であって、開口部の周囲の一部に設けられる。生体情報計測用便座は、便座の上面に生体情報計測センサを有する。【選択図】図3