The invention discloses a novel multilayer flat-base tile which comprises an arch bridge part arched upwards, and a flat plate connected to one side of the arch bridge part. The arch bridge part and the flat plate are integrally molded. The novel multilayer flat-base tile is characterized in that the flat plate comprises an upper plate surface part and a lower plate surface part arranged up and down; the upper plate surface part and the lower plate surface part are connected through a rib plate; and a space between the upper plate surface part and the lower plate surface is divided by the ribplate so as to form a horizontally distributed triangular cavity.