The present invention discloses a refrigerator including a refrigerator main body having an opening, a door connected to the refrigerator main body and configured to open and close the opening, a storage unit configured to be moved toward a rear wall within the refrigerator main body so as to be installed in the refrigerator main body, the rear wall facing the opening, a power supply unit mounted at the rear wall and having an accommodating portion formed to face the opening, and a connection unit mounted at the storage unit, wherein when the storage unit is moved to the rear wall and installed in the refrigerator main body, at least part of the connection unit is inserted into the accommodating portion so as to be electrically connected to the power supply unit.