Abstract: Karst sinkhole occurrences are the results of many potential influential factors. The development of the underground soil and rock cavities is one of the essential factors. The soluble bedrock and the groundwater conditions are the major factors that affecting development of cavities. The degree of karst terrain development, the density of the collapsed sinkholes and the underground soil and rock cavities are the controlling factors affecting sinkhole occurrences. This paper presents the investigation results of karst terrain in Lingui New District of Guilin City. The results can be used in the geological hazards of sinkhole reduction practice.

Key words: Karst Terrain, Karst Soil and Rock Cavities, Sinkholes, Guilin