The limestone outcrops are widespread and landslides are frequent in the southeastern Sichuan Basin, so it is necessary to evaluate the risk zoning of landslides in this area. Based on the investigation and analysis of the geological environment in the limestone area of the southeastern Sichuan Basin, a limestone area covering Wulong District, Nanchuan District and Qijiang District of Chongqing City and mainly composed of mountainous areas was selected as the research area. Nine risk evaluation indexes were selected, including stratum lithology, relative height difference of steep cliffs, elevation, annual mean rainfall, topographic slope, vegetation coverage, distance from river system, distance from fault structure and distance from road. Then the contribution rate of single factor was calculated by using the contribution rate method of a large number of landslides, and the hierarchical assignment system of risk evaluation indexes was established. The weight coefficient of each influencing factor was calculated by using the entropy method, and the contribution weight model and entropy method were coupled to construct the landslide risk evaluation model. Finally, the multi-factor spatial superposition was realized by using the equal area method based on ArcGIS system. The results showed that the area proportions of extremely high risk area, high risk area, medium risk area and low risk area in the research area were 11%, 30%, 33.3% and 25.7%, respectively. There were 12, 6, 2 and 2 towns in the extremely high risk area, high risk area, medium risk area and low risk area in the research area, respectively. The research results provide important reference for the early warning and forecast of landslide disasters and the prevention and control of landslides in the southeastern Sichuan Basin.