The utility model relates to an anti-collision monitoring system for a high-voltage transmission line. The anti-collision monitoring system comprises an anti-collision detection unit, an anti-collision CPU control panel, a wireless communication unit, an alarm, a remote terminal and a line energy taking device, the anti-collision detection unit detects the change of the surrounding environment ina radar 60-degree scanning mode through a radar scanning device, and outputs the distance between a moving object and a high-voltage power transmission line. The anti-collision CPU control panel is connected with the output end of the anti-collision detection unit, collects data of the anti-collision detection unit, sends out an alarm signal, and transmits an alarm to a remote terminal through thewireless communication unit. The alarm is connected with the anti-collision CPU control panel and gives out alarm sound accompanied by flickering warning colors to remind a target; and the line energy taking device provides a power supply for the anti-collision monitoring device through the combination of a current transformer and an energy storage capacitor. In the aspect of energy taking, the monitoring of the power transmission line reduces hidden dangers.