A pulse measuring device of the disclosure includes a housing (19), a light-emitting device (11), a light-receiving device (13), and a light guide body (12) having a first end surface (12A) facing the light-emitting device (11), a second end surface (12B) facing the first end surface (12A) and facing the light-receiving device (13), one or a plurality of first side surfaces covered by the housing (19), and one or a plurality of second side surfaces (S) exposed from the housing (19).
