The hidden danger points of collapse and landslide in Qingdao area account for 96% of the total. The openpit quarries and unstable slopes left over by quarrying activities are typical areas prone to landslide and collapse. In 22 months, we selected typical representative Baiguoshan stone mining area, fully analyzed its natural and geological conditions, geological environment damage, engineering geological conditions and so on, adopted dangerous rock mass removal, slope cutting and shaping, passenger soil backfilling, slope engineering treatment, greening spraying, construction of retaining wall and other technologies, and achieved good control effect. As a result, it has a demonstration effect on the control of other disaster spots in Qingdao.