The present invention is provided with a substrate (6) in a long plate shape, a spacer (7) stacked on the substrate (6), a measurement part (3) provided in a front end section of the substrate (6) and a front end section of the spacer (7), a connection terminal (4) provided in a rear end section of the substrate (6), a connection part (5) provided in the substrate (6) and electrically connecting the measurement part (3) and the connection terminal (4), and a plate-like body stacked on the spacer (7) and disposed in a position between a center of gravity of the of the organism sample measurement sensor (1) and the front end of the substrate (6) when the organism sample measurement sensor (1) is laid sideways, the position dose not overlap with the center of gravity of the organism sample measurement sensor (1).
