Abstract: A digital subscriber line access multiplexing apparatus is disclosed in the invention, including subscriber side wide band service processing module, multiplex/demultiplex module, memory, network side processing module. Using the invention, the multiplexing apparatus could locate farther, and the distance of the signal transferring would be longer, satisfying the wide band service needs of the out-of-the-way area; and for the places where the optical fibers aren't laid or there is no free optical transmitting resources, there is no need to put large amount of manpower and material resources to lay the optical fiber or increase the optical transmission equipment, while satisfying the needs of wide band services. A method employing the digital subscriber line access multiplexing apparatus for signal transferring is also disclosed in this invention.