Abstract: In view of the problems of slow speed, long cycle and terrain limitation in the investigation of hidden disasters on the surface of traditional coal mines, taking the shallow coal seam production coal mine in Shenbei Mining Area of Jurassic coalfield in northern Shaanxi Province as an example, the low-altitude remote sensing technology of visible light+infrared thermal imaging of unmanned aerial vehicle was adopted to realize the rapid scanning of hidden disasters on the surface of coal mines. The results show that the extension length, direction and scale of ground fissures can be quickly identified and calculated according to the flying height, azimuth angle and shooting width of UAV. Quickly check out surface water bodies such as rivers, ponds and springs through visible light images; infrared and visible light fusion mode can quickly capture and track the abnormal points of surface high temperature and determine the scope of hidden fire area; identify the exposure of surface bedrock and revise the scope of burnt rock again; delineate the location, scale and potential danger zone of waste rock hill; it is found that villagers steal mining holes and identify other hidden disaster-causing factors such as dangerous geological bodies.