Abstract:Based on detailed geological disasters investigation of Sishui county, combining with geological environmental conditions, investigation and evaluation have been carried out systematically, and development characteristics of geological disasters in Sishui county have been analyzed deeply. According to the damage degree of geological disasters, by using the combination of quantitative evaluation and qualitative evaluation, easy happening areas of geological disasters have been classified and evaluated, relative prevention and control plan have been put forward, and a sound geological hazard monitoring network and early warning system have been set up.