A refrigerator comprising: a cabinet that defines a storage space; a door that is mounted to the cabinet and that is configured to open and close the storage space; a mounting part (100, 140) that is located on an inner surface of the door; and baskets (210, 220, 230, 240) that are each detachably mounted to the mounting part (100, 140) and that each comprise: a basket body (211, 221, 231, 241) that defines an accommodation space that is configured to receive food and that includes a recessed part (212, 222, 232, 242) on a bottom surface of the basket body (211, 221, 231, 241); and a frame (300, 400, 500, 600) that is located in the recessed part, that is configured to support the basket body (211, 221, 231, 241), and that is detachably mounted to the mounting part (100, 140), characterized in that the frame (300, 400, 500, 600) includes a frame body (310, 410, 510, 610) that is accommodated in one side of the basket body (211, 221, 231, 241), wherein the mounting part comprises: side surfaces that are each located on a corresponding inner surface of a door dike that protrudes from edges of the door; and a rear surface formed to cross an inner surface of the door and that is configured to connect the side surfaces, wherein the side surfaces extend in parallel to a bottom surface of the basket when the basket is mounted to the mounting part, and wherein the basket further comprises a support rib that protrudes from a rear surface of the basket and that is configured to engage the rear surface of the mounting part. a cabinet that defines a storage space; a door that is mounted to the cabinet and that is configured to open and close the storage space; a mounting part (100, 140) that is located on an inner surface of the door; and baskets (210, 220, 230, 240) that are each detachably mounted to the mounting part (100, 140) and that each comprise: a basket body (211, 221, 231, 241) that defines an accommodation space that is configured to receive food and that includes a recessed part (212, 222, 232, 242) on a bottom surface of the basket body (211, 221, 231, 241); and a frame (300, 400, 500, 600) that is located in the recessed part, that is configured to support the basket body (211, 221, 231, 241), and that is detachably mounted to the mounting part (100, 140), a basket body (211, 221, 231, 241) that defines an accommodation space that is configured to receive food and that includes a recessed part (212, 222, 232, 242) on a bottom surface of the basket body (211, 221, 231, 241); and a frame (300, 400, 500, 600) that is located in the recessed part, that is configured to support the basket body (211, 221, 231, 241), and that is detachably mounted to the mounting part (100, 140), characterized in that the frame (300, 400, 500, 600) includes a frame body (310, 410, 510, 610) that is accommodated in one side of the basket body (211, 221, 231, 241), wherein the mounting part comprises: side surfaces that are each located on a corresponding inner surface of a door dike that protrudes from edges of the door; and a rear surface formed to cross an inner surface of the door and that is configured to connect the side surfaces, side surfaces that are each located on a corresponding inner surface of a door dike that protrudes from edges of the door; and a rear surface formed to cross an inner surface of the door and that is configured to connect the side surfaces, wherein the side surfaces extend in parallel to a bottom surface of the basket when the basket is mounted to the mounting part, and wherein the basket further comprises a support rib that protrudes from a rear surface of the basket and that is configured to engage the rear surface of the mounting part.