To provide an innovative built-in cupboard with a simple structure, in which the upper pivotal part of a closing body is made forward and outward slidable from the cupboard to make the closing body securely retracted to a front outside position not to obstruct work to put a housing body in/out to enable a user to put in/out the closing body extremely smooth.

A closing body 5 is pivotally equipped turnable and rising/falling onto the upper part of the shelf 1 to enable at least the front opening part 2A of a housing body 2 equipped in the shelf 1 to be closable by the closing body 5. The upper pivotal part 6 of the closing body 5 is slidably equipped along a slide guide 7 forward and outward from the shelf 1. The lower part of the closing body 5 is connected to the upper part of the housing body 2. When the housing body 2 is drawn out from the shelf 1, the upper pivotal part 6 of the closing body 5 is slidingly moved forward and outward from the shelf 1 along the slide guide 7 and then the lower part of the closing body 5 is actuated to rotate upward to make the closing body 5 retracted to a position not to obstruct putting out the closing body 2.