A network routing device, comprising a first network transmission processing module, at least one first radio frequency unit, a first antenna corresponding to the first radio frequency unit in quantity, and at least one first wired communication module, wherein the first network transmission processing module has at least two first baseband signal data interfaces, one first baseband signal data interface is connected to one end of the first radio frequency unit, the other end of the first radio frequency unit is connected to the first antenna, and another first baseband signal data interface is connected to one first wired communication module; the first network transmission processing module is configured to: convert a received data signal into at least two baseband signals, send one baseband signal to the first radio frequency unit through the first baseband signal data interface, and send the other baseband signal to the first wired communication module through the first baseband signal data interface; the first radio frequency unit is configured to: convert the baseband signal sent by the first network transmission processing module into a radio frequency signal, and then send the radio frequency signal by using the first antenna; and the first wired communication module is configured to: be connected to a wired transmission medium, convert the baseband signal sent by the first network transmission processing module into a network signal that can be transmitted in the wired transmission medium, and then send the network signal to the wired transmission medium for transmission; wherein the device further comprises a first channel indicator detection unit connected to the first network transmission processing module, wherein the first channel indicator detection unit is configured to: detect a first channel indicator of a wireless channel corresponding to the first radio frequency unit, detect a second channel indicator of a wired channel corresponding to the first wired communication module, and send a detection result to the first network transmission processing module; and the first network transmission processing module is further configured to determine, before converting the received data signal into the at least two baseband signals, that both the first channel indicator and the second channel indicator meet a preset channel indicator condition. the first network transmission processing module has at least two first baseband signal data interfaces, one first baseband signal data interface is connected to one end of the first radio frequency unit, the other end of the first radio frequency unit is connected to the first antenna, and another first baseband signal data interface is connected to one first wired communication module; the first network transmission processing module is configured to: convert a received data signal into at least two baseband signals, send one baseband signal to the first radio frequency unit through the first baseband signal data interface, and send the other baseband signal to the first wired communication module through the first baseband signal data interface; the first radio frequency unit is configured to: convert the baseband signal sent by the first network transmission processing module into a radio frequency signal, and then send the radio frequency signal by using the first antenna; and the first wired communication module is configured to: be connected to a wired transmission medium, convert the baseband signal sent by the first network transmission processing module into a network signal that can be transmitted in the wired transmission medium, and then send the network signal to the wired transmission medium for transmission; wherein the device further comprises a first channel indicator detection unit connected to the first network transmission processing module, wherein the first channel indicator detection unit is configured to: detect a first channel indicator of a wireless channel corresponding to the first radio frequency unit, detect a second channel indicator of a wired channel corresponding to the first wired communication module, and send a detection result to the first network transmission processing module; and the first network transmission processing module is further configured to determine, before converting the received data signal into the at least two baseband signals, that both the first channel indicator and the second channel indicator meet a preset channel indicator condition.