Emergency intelligent switching system for network physical link

The invention discloses an emergency intelligent switching system for a network physical link. The emergency intelligent switching system comprises an equipment heartbeat detection module, a central processing unit, a main memory, a main controller and a subsidiary control module. One end of the equipment heartbeat detection module is connected with monitored equipment. The other end of the equipment heartbeat detection module, the main memory and the main controller are connected with the central processing unit. The main controller is connected with the subsidiary control module which is connected with the monitored equipment. The emergency intelligent switching system for the network physical link is channel control equipment and enables a protected equipment by-path to bypass a node when protection equipment breaks down so as to ensure that a network is not influenced; a flexible network equipment emergency protection scheme is provided for a client, a network platform achieves smooth and real-time transmission of large-flow data with the help of the system, and the usability, the safety, the stability and the reliability of the data are improved.