Novel multilayer circuit board

The utility model discloses a novel multilayer circuit board which comprises a plurality of circuit board units, each circuit board unit comprises a substrate and a copper foil layer covering the substrate, and the substrate is provided with an upper storage space, a threaded hole and a lower storage space which are arranged from top to bottom and are communicated with one another. The connectingpiece and the threaded column are in threaded connection in the threaded hole. According to the novel multilayer circuit board provided by the utility model, the upper supporting plate can be accommodated in the lower accommodating space, the lower supporting plate can be accommodated in the upper accommodating space of the adjacent substrate, the bottoms of the threaded columns extend into the upper threaded holes, and the tops of the threaded columns in the adjacent substrates extend into the lower threaded holes to connect the adjacent substrates. Therefore, the adjacent circuit board unitscan be conveniently, flex