A refrigerator, comprising: a body having a storage compartment (21, 22); a door (30, 40, 41) configured to open/close the storage compartment (21, 22); a cover plate disposed inside the storage compartment (21, 22); a cooling space formed in between the cover plate and an upper wall of the body; an evaporator provided at the cooling space and configured to generate cool air; a blower fan provided at the cooling space and configured to forcedly flow the cool air generated at the evaporator; a cool air supplying hole formed at the cover plate and configured to supply the cool air of the cooling space to the storage compartment (21, 22); a cool air collecting hole formed at the cover plate and configured to collect the cool air heated at the storage compartment (21, 22) to the cooling space; an ice maker provided at the front of the evaporator at the cooling space to generate ice; a water supplying system provided at the cooling space and configured to supply water to the ice maker or to supply water to a dispenser of the door (30, 40, 41); an ice bucket provided at the door (30, 40, 41) and configured to store the ice generated by the ice maker; an ice bucket cooling air supplying hole formed at the cover plate and configured to supply the cool air of the cooling space to the ice bucket; characterized by: a cool air collecting duct formed at an upper surface of the cover plate and configured to communicate the cooling space with the ice bucket to collect the cool air heated at the ice bucket to the cooling space; and wherein the water supplying system comprises a filter to filter the water supplied from an outside water supplying source, a water tank to cool water by cool air of the cooling space, and a valve to divide the water supplied from the outside water supplying source to the water tank and the ice maker. a body having a storage compartment (21, 22); a door (30, 40, 41) configured to open/close the storage compartment (21, 22); a cover plate disposed inside the storage compartment (21, 22); a cooling space formed in between the cover plate and an upper wall of the body; an evaporator provided at the cooling space and configured to generate cool air; a blower fan provided at the cooling space and configured to forcedly flow the cool air generated at the evaporator; a cool air supplying hole formed at the cover plate and configured to supply the cool air of the cooling space to the storage compartment (21, 22); a cool air collecting hole formed at the cover plate and configured to collect the cool air heated at the storage compartment (21, 22) to the cooling space; an ice maker provided at the front of the evaporator at the cooling space to generate ice; a water supplying system provided at the cooling space and configured to supply water to the ice maker or to supply water to a dispenser of the door (30, 40, 41); an ice bucket provided at the door (30, 40, 41) and configured to store the ice generated by the ice maker; an ice bucket cooling air supplying hole formed at the cover plate and configured to supply the cool air of the cooling space to the ice bucket; a cool air collecting duct formed at an upper surface of the cover plate and configured to communicate the cooling space with the ice bucket to collect the cool air heated at the ice bucket to the cooling space; and wherein the water supplying system comprises a filter to filter the water supplied from an outside water supplying source, a water tank to cool water by cool air of the cooling space, and a valve to divide the water supplied from the outside water supplying source to the water tank and the ice maker.