A refrigerator comprising: a cabinet having a storage compartment provided therein and comprising an outer part forming an external appearance of the refrigerator and an inner case forming an inner surface that defines the storage compartment, the inner case forming a top surface, left and right side surfaces and a rear surface of the storage compartment; a heat exchange compartment formed in a space between the inner case and a rear panel that is located spaced apart forward from the rear surface; an evaporator located in the heat exchange compartment; a multi-duct forming a rear wall of the storage compartment and comprising a cold air discharge hole through which cold air generated in the evaporator is discharged into the storage compartment, wherein the rear panel is located at a lower side of the multi-duct; an evaporation fan and an evaporation fan shroud guiding a flow path of cold air passing through the evaporation fan to the multi-duct, which are provided at a lower side of the multi-duct; a door (12, 15) provided at a front surface of the refrigerator to selectively open and close the storage compartment; a housing defining a food storage space and attached to a rear surface of the door (12, 15); a basket provided in a storage space of the housing; a duct (251, 255, 351, 355) for supplying cold air from the evaporator into the housing, the duct extends to the housing from one side of the rear panel, the duct including a first duct (251, 351) attached to the rear panel, having a duct entrance that is configured to receive the cold air from the evaporator and extending toward a side surface of the storage compartment, the duct further including a second duct (255, 355) connected to the first duct (251, 351) and connected to a door dike of the door (12, 15); and a fan assembly (200a, 200b) for generating a blowing force so as to supply cold air into the housing, wherein the housing includes: an inlet configured to receive cold air from the duct to the inside of the housing, and discharge parts (105a, 105b) provided at side surfaces of the housing and through which cold air is discharged from the housing to the storage compartment. a cabinet having a storage compartment provided therein and comprising an outer part forming an external appearance of the refrigerator and an inner case forming an inner surface that defines the storage compartment, the inner case forming a top surface, left and right side surfaces and a rear surface of the storage compartment; a heat exchange compartment formed in a space between the inner case and a rear panel that is located spaced apart forward from the rear surface; an evaporator located in the heat exchange compartment; a multi-duct forming a rear wall of the storage compartment and comprising a cold air discharge hole through which cold air generated in the evaporator is discharged into the storage compartment, wherein the rear panel is located at a lower side of the multi-duct; an evaporation fan and an evaporation fan shroud guiding a flow path of cold air passing through the evaporation fan to the multi-duct, which are provided at a lower side of the multi-duct; a door (12, 15) provided at a front surface of the refrigerator to selectively open and close the storage compartment; a housing defining a food storage space and attached to a rear surface of the door (12, 15); a basket provided in a storage space of the housing; a duct (251, 255, 351, 355) for supplying cold air from the evaporator into the housing, the duct extends to the housing from one side of the rear panel, the duct including a first duct (251, 351) attached to the rear panel, having a duct entrance that is configured to receive the cold air from the evaporator and extending toward a side surface of the storage compartment, the duct further including a second duct (255, 355) connected to the first duct (251, 351) and connected to a door dike of the door (12, 15); and a fan assembly (200a, 200b) for generating a blowing force so as to supply cold air into the housing, wherein the housing includes: an inlet configured to receive cold air from the duct to the inside of the housing, and discharge parts (105a, 105b) provided at side surfaces of the housing and through which cold air is discharged from the housing to the storage compartment. an inlet configured to receive cold air from the duct to the inside of the housing, and discharge parts (105a, 105b) provided at side surfaces of the housing and through which cold air is discharged from the housing to the storage compartment.