Matrix junction device

The invention relates to a matrix junction device. The matrix junction device comprises an input circuit board, an output circuit board, diodes and jack sockets, wherein a plurality of openings which are distributed in a matrix mode are arranged on the input circuit board, and each opening corresponds to one jack socket which is electrically connected with a circuit on the input circuit board. The jack sockets which are in one-to-one correspondence to the openings and are electrically connected with a circuit on the output circuit board are arranged on the output circuit board, and the diodes are arranged between the circuit on the input circuit board and each jack socket on the input circuit board or between the circuit on the output circuit board and each jack socket on the output circuit board. The matrix junction device has the advantages that by means of the circuit boards, the processing difficulty in the junction device manufacture process is reduced, thereby the cost is reduced, compared with the cont