Abstract: Three Gorges Reservoir Area belongs to middle and low-relief terrain, where gulch cutting is deep and dense. The road and railway construction will create large amount of excavation slope and tunnel piercing, which will introduce several environment geology problems, including the slope failure, tunnel collapse and groundwater drainage. With the reservoir development, not only does the inundated road need repair, but also the construction of a new road. So, preventing the geological hazard is of great significance for the protection in the reservoir area. Based on the analysis of the various examples of geological environment problems, the environment geology prediction and prevention techniques were advanced, which provided valuable geological data for the sustainable development in the Three Gorges Reservoir Area.