The present disclosure relates to an apparatus for charging and discharging a coin-type secondary battery. The apparatus includes at least: a vessel filled with a solution containing water or sodium ions; a jig part installed at the vessel, having an interior in which a coin-type secondary battery is mounted, and configured to allow a cathode part of the coin-type secondary battery to be brought into contact with the solution in the vessel; an anode terminal installed at the jig part and electrically connected to an anode part of the coin-type secondary battery; and a cathode terminal electrically connected to the cathode part of the coin-type secondary battery.