Objectives: The karst collapse area of Chaoshan Village is located in the central part of Tongling City, Anhui Province. The area affected by the collapse is about 0.24 km2, which is a largescale karst collapse disaster. Based on the study of bedrock lithology, characteristics of overburden, dynamic conditions of groundwater and human influence in chaoshan area of tongling city, the formation conditions of karst collapse in this area are analyzed. And the empirical index method is used to evaluate the stability of the ground, in order to provide a basis for the collapse management in the area.Methods: In the study area, borehole observation and inwell charging method test are carried out, and statistical analysis is made based on previous engineering survey data.Results: Fractures dominate the distribution of karst collapse in the area，and upwards of 90% of the pits are situated in the 20m region of fractures. Lithology of the basement bears close association with occurrence of karst collapse, and collapse is triggered by advantage of the high levels of calcium carbonate. collapse mostly takes place in the zone of multiple or dualistic structure, and the collapse points are all distributed in the section with the thickness of overburden less than 12m.There is a significant correlation between subsidence and drainage in the study area, and the number of subsidence and displacement increase in the same direction.Conclusions: The formation conditions of largescale karst collapse in chaoshan village area of tongling city mainly include the following: ① Calcium oxide content in bedrock is relatively high; ② The covering layer is of multiple structures with thin thickness; ③ Abundant karst groundwater resources and good runoff discharge conditions; ④ Affected by drainage of three surrounding mines.In addition，Based on the investigation of the formation conditions of karst collapse in the area, the empirical index method is used to evaluate the ground stability of the Chaoshan area, and determines that the research area is a collapseable area, which requires key monitoring and prevention.