A biological information measurement device adapted to measure biological information of a living body includes a board having a first surface and a second surface adapted to form two surfaces of the board with the first surface, a circuit element disposed on the first surface, and adapted to execute a predetermined process, and a sensor section disposed on the second surface, and adapted to detect the biological information, and the sensor section has a light emitter adapted to irradiate the living body with light, a light receiver adapted to receive reflected light reflected by the living body, and a sealing material having a light transmissive property, having contact with the living body, and adapted to seal the light emitter and the light receiver on the board.
