The utility model provides a take OPGW on -line monitoring system of infrared induction, the monitoring system host computer sets up in the transformer substation, real -time supervision OPGW cable system running state, its characterized in that contains: the display module sets up on the monitoring system host computer, the infrared induction module sets up on the monitoring system host computer,the infrared induction module contains 2 group's power cords, and first power cord is infrared induction module power supply itself, and the second source line is connected with the display module, for the display module power supply. The utility model discloses an advantage and beneficial effect are the display module normalities for closing, detect when the infrared induction module and just open the display module when someone is close to to practice thrift the electric energy, reduce the consumption.