Abstract: In recent years, forest fires in China have occurred frequently, which has seriously affected the national economy and the safety of the people.Based on satellite wildfire monitoring technology, visible light and infrared light monitoring technology, and unmanned aerial vehicle fire investigation technology, this paper proposes a multi-dimensional monitoring scheme for wildfire, expounds the space-space three-dimensional hill fire monitoring and early warning technology system from multiple space-time dimensions, promotes the establishment of accurate early warning and rapid response mechanism for hill fire, promotes the improvement of relevant management systems for safe operation of power grid, and provides support for the work of preventing hill fire in power grid.