The invention discloses a wiring method and a related device. Power supply signals and/or telephone signals can be integrated into a network signal transmitted by a data cable, thereby forming integrated signals. The integrated signals are transmitted via the data cable, so a receiving end can receive the integrated signals via the data cable. Corresponding power supply signals and network signals, or telephone signals and network signals, or power supply signals, telephone signals and network signals can be obtained according to the integrated signals. Thus, problems of too much wiring circuits, quite great difficulties and quite high cost in a current wiring method are solved; complexity in network wiring is greatly reduced; and cost of the network wiring is reduced.