PROBLEM TO BE SOLVED: To provide an electric impedance tomography measuring device suitable for prolonged use, structured to resist a high degree of sterilization treatment, and capable of easily implementing EIT measurement.SOLUTION: An electric impedance tomography measuring device comprises: electroconductive cloth electrodes (12) contactable on a living body, a plurality of which being connected in parallel to form an electroconductive cloth electrode group (11) constituting a cloth-made measuring belt (10) and a flexible substrate (20) surrounded by the cloth-made measuring belt. The flexible substrate is configured to include contact means (21) contactable on the electroconductive cloth electrodes. The contact means, when the electroconductive cloth electrodes contact a subject living body, supplies electric current applicable to the living body to the electroconductive cloth electrodes, and receives voltage signals concerning the biological impedances obtained from the surfaces of the living body by way of the electroconductive cloth electrodes.
