A refrigerator comprising: a holder terminal unit provided in a main body of the refrigerator ; and a shelf terminal unit provided in a shelf installed in the main body , wherein the holder terminal unit includes: a holder installed at an inner rear wall of the refrigerator main body and having an opening which is opened toward a front side of the refrigerator ; a holder side terminal provided to correspond to a shelf side terminal of the shelf terminal unit ; and characterized in that the holder side terminal is provided to be movable in forward and backward directions within the holder ; an elastic member provided between the holder and the holder side terminal and configured to elastically support the holder side terminal ; a cover mounted to the holder so as to cover the opening , and having a cutout portion through which the shelf side terminal passes, and the holder side terminal is pressurized by the shelf side terminal which is inserted into the holder through the cutout portion and moved backwardly to be connected electrically to a power supply unit when the shelf is installed to the refrigerator main body , while maintaining an elastic contact with the shelf side terminal by the elastic member . a holder terminal unit provided in a main body of the refrigerator ; and a shelf terminal unit provided in a shelf installed in the main body , wherein the holder terminal unit includes: a holder installed at an inner rear wall of the refrigerator main body and having an opening which is opened toward a front side of the refrigerator ; a holder side terminal provided to correspond to a shelf side terminal of the shelf terminal unit ; and characterized in that the holder side terminal is provided to be movable in forward and backward directions within the holder ; an elastic member provided between the holder and the holder side terminal and configured to elastically support the holder side terminal ; a cover mounted to the holder so as to cover the opening , and having a cutout portion through which the shelf side terminal passes, and the holder side terminal is pressurized by the shelf side terminal which is inserted into the holder through the cutout portion and moved backwardly to be connected electrically to a power supply unit when the shelf is installed to the refrigerator main body , while maintaining an elastic contact with the shelf side terminal by the elastic member . a holder installed at an inner rear wall of the refrigerator main body and having an opening which is opened toward a front side of the refrigerator ; a holder side terminal provided to correspond to a shelf side terminal of the shelf terminal unit ; and characterized in that the holder side terminal is provided to be movable in forward and backward directions within the holder ; an elastic member provided between the holder and the holder side terminal and configured to elastically support the holder side terminal ; a cover mounted to the holder so as to cover the opening , and having a cutout portion through which the shelf side terminal passes, and the holder side terminal is pressurized by the shelf side terminal which is inserted into the holder through the cutout portion and moved backwardly to be connected electrically to a power supply unit when the shelf is installed to the refrigerator main body , while maintaining an elastic contact with the shelf side terminal by the elastic member . <EOS>