PROBLEM TO BE SOLVED: To provide a pulse measuring device capable of precisely measuring a pulse without regard to a wearing state on a human body.SOLUTION: The pulse measuring device comprises light-emitting means which emits light having a first polarization plane； light receiving means which transmits and receives light having a polarization plane different from the polarization plane of a positive reflection light of the light emitted by the light-emitting means； and determination means which determines a pulse on the basis of the received light intensity of the light receiving means.SELECTED DRAWING: Figure 5【課題】人体への装着状態に拘らず、精度良く脈拍を測定できる脈拍測定装置を提供する。【解決手段】脈拍測定装置は、第１偏波面の光を照射する発光手段と、前記発光手段が照射した前記光の正反射光の偏波面とは異なる偏波面の光を透過させて受光する受光手段と、前記受光手段の受光強度に基づき脈拍を判定する判定手段と、を備えている。【選択図】図５
