Disclosed is a refrigerator (100) preventing an air supply duct (141) from falling down, which includes a top cover (103) that divides a lowermost storage liner (130) into a storage space (132) located above and a cooling space located below, an evaporator (101) arranged in the cooling space, and the air supply duct (141) arranged at an inner side of a rear wall of the storage liner (130). The top cover (103) includes a top cover body (103a) and a supporting portion (103b) protruding upward from a rear end of the top cover body (103a); a bearing portion (141b) protruding forward is formed on a front wall surface of the air supply duct (141); and the top cover (103) and the air supply duct (141) are arranged such that the supporting portion (103b) supports the bearing portion (141b) to prevent the air supply duct (141) from falling down.