Abstract: The present invention provides a compartment-arrayed probe for measuring extracellular electrical potential, the probe comprising: a compartment body (1) having a plurality of through-holes; and an electrode substrate (2) composed of a non-electrically conductive material, on one surface of which the plurality of measurement electrodes are disposed and a tubular member (3) is disposed in such a manner as to surround the measurement electrodes; wherein one surface of the compartment body (1) to which each of the through-holes opens is adhered to an area surrounded by the tubular member (3) on the electrode substrate (2) in such a manner that at least a part of the plurality of through-holes surround a part of the plurality of measurement electrodes; a part of an inner wall surface of the through-hole contacts a culture medium when it is injected thereinto; the part of the inner wall surface is composed of an electrically conductive material; and the electrical potential of the measurement electrode is measured