Disclosed herein is a refrigerator including a main body, an outer case forming an external appearance of the main body, an inner case disposed at the inside of the outer case and forming storage chambers, and a heat insulating member formed by filling a space between the outer case and the inner case with foaming resin, wherein the outer case includes a main frame obtained by bending a metal plate into a U shape and forming a lower surface and both side surfaces of the main body, and upper frames installed on the main frame and forming an upper surface of the main body, thereby easily forming main body hinge receipt parts to receive rear ends of upper hinge modules on the upper surface of the main body.