Abstract: In the adiabatic apparatus of the present invention, a vessel includes an adiabatic layer in which an object is taken. A plurality of thermal shield plates are located in the adiabatic layer. Each thermal shield plate concentrically surrounds the object. A temperature control section cools or heats the object and the plurality of thermal shield plates. A switch section thermally connects the temperature control section to the plurality of thermal shield plates and the object if temperature of the plurality of thermal shield plates and the object is controlled, and thermally separates the temperature control section from the plurality of thermal shield plates and the object if control of the temperature of the plurality of thermal shield plates and the object is completed.