The present invention relates to a supercooling apparatus which can reduce a deviation of energy applied to a stored object. The supercooling apparatus includes a storage room provided in a storing unit where the cooling is performed and having a storing space therein to store or receive an object, a heat source supply unit installed in the storage room and supplying heat to the storing space or generating heat in the storing space; a temperature sensing unit sensing the temperature of the storing space or the stored object, and a control unit operating the heat source supply unit based on the temperature sensed by the temperature sensing unit to enable an upper portion of the storing space to have a temperature higher than a temperature of the maximum ice crystal formation zone, such that the storing space or the stored object is maintained in a supercooled state at a temperature below the maximum ice crystal formation zone, the control unit supplying or generating heat over a given magnitude during the supercooled-state control.