Abstract: Landslides happen frequently in Ruili City, In order to reveal the causes of landslide geological hazards in Ruili City, based on the investigation and statistical results, the temporal and spatial distribution characteristics of landslides are analyzed. Based on the factors influencing landslide occurrence, such as landform, geological structure, type of rock and soil structure, rainfall and human engineering activities, the main component(R-type factor) analysis and stepwise regression analysis are used to obtain the rock and soil types. Type I is the main controlling factor affecting landslide formation, and rainfall and human engineering activities are the main triggering factors.