Recently, due to more flooding, schistosomiasis is in expanding tendency in some areas. With Three Gorges Engineering progress, schistosomiasis will occurr potentially in Three Gorges reservoir. In order to control the disease, some methods must be applied, e.g. chemicals, biological measures. To some extent every way has its specific effect. However, the vital way is improving the environment and reducing the amount of snails. One of the effective ways is conducting forestry ecological engineering that focuses on snail control and schistosomiasis prevention. The practical ways cover such as pollution controlling, ditches surface hardening. Especially for water-level-fluctuation zone, conducting forestry ecological engineering to improve environment to prevent snails’ propagation is significant and vital. By operating the project environment could be greatly improved and people’s living conditions would be bettered. Recently, due to more flooding, schistosomiasis is in expanding tendency in some areas. With Three Gorges Engineering progress, schistosomiasis will occurr in three Gorges reservoir. In order to control the disease, some methods must be applied, eg chemicals, biological measures. To some extent every way has its specific effect. However, the vital way is improving the environment and reducing the amount of snails. One of the effective ways is conducting forestry ecological engineering that focuses on snail control and schistosomiasis prevention. The practical ways cover such especially for water-level-fluctuation zone, conducting forestry ecological engineering to improve environment to prevent snails’ propagation is significant and vital. By operating the project environment could be greatly improved and people’s living conditions would be bettered .