The present invention provides a refrigerator including a compressor for compressing refrigerant, a condenser in which the refrigerant, which has been compressed in the compressor, is condensed, an icemaker, a water supply tube, which supplies water to the icemaker and is in contact with at least one of the compressor and the condenser, an ice-making water supply valve installed in the water supply tube, a temperature sensor installed at the water supply tube, and a controller for controlling the ice-making water supply valve based on a temperature detected by the temperature sensor. Water having a temperature that is raised to a temperature range set in consideration of the Mpemba effect is supplied to the icemaker, thereby enabling rapid ice making.