A refrigerator comprising: a cabinet in which a freezing compartment and a refrigerating compartment are defined; a freezing compartment door configured to open and close the freezing compartment; a refrigerating compartment door configured to open and close the refrigerating compartment; a drawer configured to store foods, which is disposed in the refrigerating compartment; a water supply passage connected to a water supply source outside the cabinet; a water supply valve configured to open and close the water supply passage; characterized in that the refrigerator further comprises a plurality of filters vertically arranged in a space between a sidewall of the refrigerating compartment and the drawer; a case comprising a plurality of insertion holes and a mounting guide to receive the plurality of filters; a connector in which the plurality of filters are inserted and mounted, the connector connecting the plurality of filters to the water supply passage; a water tank mounted in a space between a rear wall of the refrigerating compartment and the drawer; a cooled water passage branched at a rear end of the connector to pass through a hinge of the freezing compartment door after passing through the water tank and a cooled water valve; a purified water passage branched at the rear end of the connector, the purified water being additionally branched from a purified water valve mounted on the outside of the freezing compartment door after passing through the hinge of the freezing compartment door; an ice making device disposed in the freezing compartment door or the freezing compartment to receive the purified water from an ice making passage; and a dispensing passage in which the cooled water passage and the purified water passage are combined with each other by a connection member. a cabinet in which a freezing compartment and a refrigerating compartment are defined; a freezing compartment door configured to open and close the freezing compartment; a refrigerating compartment door configured to open and close the refrigerating compartment; a drawer configured to store foods, which is disposed in the refrigerating compartment; a water supply passage connected to a water supply source outside the cabinet; a water supply valve configured to open and close the water supply passage; characterized in that the refrigerator further comprises a plurality of filters vertically arranged in a space between a sidewall of the refrigerating compartment and the drawer; a case comprising a plurality of insertion holes and a mounting guide to receive the plurality of filters; a connector in which the plurality of filters are inserted and mounted, the connector connecting the plurality of filters to the water supply passage; a water tank mounted in a space between a rear wall of the refrigerating compartment and the drawer; a cooled water passage branched at a rear end of the connector to pass through a hinge of the freezing compartment door after passing through the water tank and a cooled water valve; a purified water passage branched at the rear end of the connector, the purified water being additionally branched from a purified water valve mounted on the outside of the freezing compartment door after passing through the hinge of the freezing compartment door; an ice making device disposed in the freezing compartment door or the freezing compartment to receive the purified water from an ice making passage; and a dispensing passage in which the cooled water passage and the purified water passage are combined with each other by a connection member.