BIOLOGICAL INFORMATION MEASUREMENT DEVICE

Provided is a biological information measurement device (10) that does not require multiple stages of light emission and light reception, can acquire both information for obtaining biological information of a measurement target and a highly accurate reference by one time of light emission and light reception, and can measure the biological information. A biological information measurement device (10) is provided with: a light source (11) that emits light; a sensor (image sensor) (13) which has a plurality of pixels arranged in an array in a two-dimensional plane, which receive light emitted by the light source (11) and transmitted, reflected, or scattered in a living body, and which outputs information corresponding to the amount of received light, and which has a saturation charge number of 1 million or more; a specific site selection unit (14a) that selects, on the basis of information obtained by the sensor (13), a site to be measured, which is the subject of measurement of the biological information, and