A detachable cabinet comprises a bottom plate including four slots each on a corner, two spaced wells on the rear side, and a projection on the corner at the front side. A pair of side plates each includes two bottom pegs, a front longitudinal groove, an abutment member clung onto the front longitudinal groove, a rear longitudinal groove, and two spaced studs on the top. A rear plate includes two spaced studs on the bottom and on the top. A top plate includes six apertures on the bottom side and a slot on a front corner at the bottom side. A front door includes a projection on the top at the side opposite to a handle and a slot on the bottom on the same side as the projection of the door. A number of configurations are possible. Further, the cabinet is easy to assemble and is sturdy.