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.
