Medium-density fiberboard

The invention relates to the technical field of fiberboards, in particular to a medium-density fiberboard which comprises a fiberboard body and a top plate detachably mounted on the top wall of the fiberboard body, a plurality of mounting grooves are evenly formed in the top wall of the fiberboard body, and a fastening bolt is in threaded connection with the interior of each mounting groove. And a plurality of filling blocks matched with the mounting grooves are fixedly installed on the bottom wall of the top plate, the filling blocks correspond to the mounting grooves in a one-to-one mode, a plurality of connecting rods are fixedly installed on the bottom wall of the top plate, and a plurality of connecting grooves matched with the connecting rods are formed in the top wall of the fiberboard body. The top plate can be conveniently and fixedly installed on the top wall of the fiberboard body or detached from the top wall of the fiberboard body, so that only the top plate needs to be replaced after the top pla