A non-invasive living body measurement device (1), provided with: a platform (21) for placing a finger (8) of the subject to be measured; a light emission device (3) equipped with a plurality of light emission blocks (311-316) disposed in a line so as to be arranged along the longitudinal direction of the finger (8) placed on the platform (21); a light amount adjustment part (5) for adjusting the amount of light from the light emission blocks (311-316) so that the amount of transmitted light transmitted through the finger (8) placed on the platform (21) is uniform along the longitudinal direction of the finger (8); an imaging part (4) for receiving transmitted light resulting from the light generated by the light emission blocks (311-316) transmitting through the finger (8) placed on the platform (21), and obtaining an image of the finger; and an information processing unit for processing the image obtained by the imaging part (4) and thereby detecting biological information about the subject.
