Intelligent optical-port bypass switching protective system

The utility model discloses an intelligent optical-port bypass switching protective system. The system comprises a power supply unit, and a heartbeat detection unit, an LCD unit, a control processing unit and an optical switch switching unit connected to the power supply unit, wherein the optical switch switching unit comprises a driving circuit and four groups pf optical switches; the LCD unit is connected to the control processing unit; the input end of the control processing unit is connected to a device to be protected via the heartbeat detection unit, and the output end of the control processing unit is connected with the control ends of the four groups of optical switches; and a common optical port of the four groups of optical switches is connected with a network node, and first and second optical interfaces of the four groups of optical switches are connected to the device to be protected. When an optical device has fault, the device to be detected is avoided from the node in a bypass manner, and the whole network is avoided from influence.