Abstract: A built-in storage device having a main body accommodated in a cabinet, the main body having a storage compartment and a door opening and closing the storage compartment, the built-in storage device also having: a cover part disposed on an exterior of the door; a cover bracket combined to the cover part; a door bracket having a first door bracket combined to the door and a second door bracket extended from the first door bracket and combined to the cover bracket; and a first combining unit combining the cover bracket and the second door bracket, to control a distance between the cover bracket and the door bracket. With this configuration, the present invention provides a built-in storage device which can control the distance between the door and the cover part to open and close a storage compartment of a main body.