Monitoring networking system

The utility model relates to a monitoring networking system. The system comprises a monitoring camera, a switch, an optical transmitter and receiver, a monitoring host and a hollow splicing screen. The monitoring camera is connected to the camera end switch through a network cable; the camera end switch is connected to the camera end optical transmitter and receiver through a network cable; wherein the camera end optical transmitter and receiver is connected to the central control room optical transmitter and receiver through an optical fiber, the central control room optical transmitter and receiver is connected to the central control end core switch through a network cable, the central control end core switch is connected to the monitoring host through a network cable, and a decoder of the monitoring host is connected to the hollow splicing screen through a DVI data line. According to the utility model, an on-site analog signal is changed into an Ethernet signal and is combined witha local area network; by