The pulse wave detection device includes: a reflective pulse wave sensor having a light emitting element that irradiates a subject with light; and a light receiving element that receives the light emitted from the light emitting element and reflected by the subject; and the reflective pulse wave And an urging member for closely contacting the sensor between the eyebrows of the subject.脈波検出装置は、被験者に光を照射する発光素子と、前記発光素子から照射され、前記被験者によって反射された光を受光する受光素子とを有する反射型脈波センサと、前記反射型脈波センサを前記被験者の眉間に密着させる付勢部材とを備える。