A refrigerator comprising: a freezer compartment; a drawer door that is capable of sliding in and out of the freezer compartment so as to open/close the freezer compartment and has a storage box in which an article is stored; and an ice maker that is installed at an upper side of the freezer compartment, wherein the ice maker comprises: an ice maker supporter that is fixed to an upper wall of the freezer compartment; an electronic device case which is supported by the ice maker supporter and in which a driving motor is embedded; an ice-making tray that is supported by the electronic device case and the ice maker supporter to be rotatable by the driving motor; a temperature sensor that is installed adjacent to the ice-making tray so as to detect temperature of the ice-making tray; and a protection cover that is combined with the ice maker supporter so as to cover at least portions of a lower portion of the ice-making tray and prevents an article stacked in the lower portion of the ice-making tray from interfering with at least one of the ice-making tray, the temperature sensor, and the electronic device case when the drawer door slides, wherein the protection cover is separably fixed to the ice maker supporter characterized in that the protection cover comprises a front side portion that is combined with the ice maker supporter so as to cover portions of a front of the electronic device case, a cover part that covers portions of the lower part of the ice-making tray, and a rear side part that faces the front side part and is supported at a rear side of the ice maker supporter, and downwardly-inclined inclination guide parts (240, 250) are disposed in corner regions of lower end parts of the front side part and the rear side part, the cover part is spaced apart from a bottom surface of the ice-making tray by a predetermined distance, and a downwardly-inclined surface is formed at the cover part and guides ice separated from the ice-making tray downward. a freezer compartment; a drawer door that is capable of sliding in and out of the freezer compartment so as to open/close the freezer compartment and has a storage box in which an article is stored; and an ice maker that is installed at an upper side of the freezer compartment, wherein the ice maker comprises: an ice maker supporter that is fixed to an upper wall of the freezer compartment; an electronic device case which is supported by the ice maker supporter and in which a driving motor is embedded; an ice-making tray that is supported by the electronic device case and the ice maker supporter to be rotatable by the driving motor; a temperature sensor that is installed adjacent to the ice-making tray so as to detect temperature of the ice-making tray; and an ice maker supporter that is fixed to an upper wall of the freezer compartment; an electronic device case which is supported by the ice maker supporter and in which a driving motor is embedded; an ice-making tray that is supported by the electronic device case and the ice maker supporter to be rotatable by the driving motor; a temperature sensor that is installed adjacent to the ice-making tray so as to detect temperature of the ice-making tray; and a protection cover that is combined with the ice maker supporter so as to cover at least portions of a lower portion of the ice-making tray and prevents an article stacked in the lower portion of the ice-making tray from interfering with at least one of the ice-making tray, the temperature sensor, and the electronic device case when the drawer door slides, wherein the protection cover is separably fixed to the ice maker supporter characterized in that the protection cover comprises a front side portion that is combined with the ice maker supporter so as to cover portions of a front of the electronic device case, a cover part that covers portions of the lower part of the ice-making tray, and a rear side part that faces the front side part and is supported at a rear side of the ice maker supporter, and downwardly-inclined inclination guide parts (240, 250) are disposed in corner regions of lower end parts of the front side part and the rear side part, the cover part is spaced apart from a bottom surface of the ice-making tray by a predetermined distance, and a downwardly-inclined surface is formed at the cover part and guides ice separated from the ice-making tray downward.