Abstract: Soil bank slope collapse is the most common and increasingly serious geological disaster in the Three Gorges Reservoir (TGR) area. Determining the characteristics and development and distribution of bank collapse is one of the key tasks in the prevention and control of geological disasters in the reservoir area. During the lower water level operation period of the TGR, a comprehensive bank collapse survey was carried out in the Zigui-Fuling section of the reservoir. The typical soil bank collapse section of the reservoir were determined, and the main influencing factors of the soil bank collapse were summarized.The bank section of Wushan Reservoir was taken as an example to evaluate the susceptibility of soil bank slope to bank collapse. The results shown that the material composition of the bank collapsed frequently is mainly cohesive soil mixed with broken stones, and the soil slope collapses of the banks of Badong, Wushan, Fengjie and other reservoir banksare the most developed; the internal cause of soil bank slope collapse is geological structure, formation lithology, bank slope and shoreline shape, and the external cause is water action. The variation of reservoir water level and wave action are the main causes of soil bank slope collapse and progressive erosion; the influencing factors of bank collapse determined by the investigation are significantly related to the situation of bank collapse, and theprediction results of bank collapse susceptibility were in good agreement with the field survey. This study will provide necessary basic data and technical support for the prevention and control of geological disasters in the TGR area.