Embodiments of the present invention disclose a communication device, a communication method, a communication processing apparatus and a communication system. The communication device comprises at least two integrated main control panels which are interchangeable as main and spare controls, wherein an MCU and a hardware forwarding unit are integrated on each of the integrated main control panels. The hardware forwarding unit comprises a fabric unit (FU) and a service forwarding unit (SFU), and a control signal inter - transmission channel is arranged between the MCU of each integrated main control panel and the hardware forwarding unit on the other integrated main control panel of the at least two integrated main control panels; the MCU on any one of the at least two integrated main control panels controls the FU and the SFU on the other integrated main control panel of the at least two integrated main control panels through the control signal inter - transmission channel. By means of the present invention, t
