Due to vital role of water in all human kind history and also population explode problem, water crisis was predictable and expertise always try to minimize water losses by various techniques. since old times building dams as a barrier to water movement was one of basic methods to keep water resources. on the other hands, it yielded different social, economical and environmental effects. this research is designed to investigate the impacts of dam building on beneficent villagers in Yasouj. research method was based on cross-survey method and data gathering done by two professorship procedure and field methods.The researching population based on four villages (sarabtave, moorderaz soflaa, moorderas olia and moorderaaz vostaa). Sample size was determined using the Cochran formula n=192 of number person afterwards was divided through the proportional allocation between different justify; LINE-HEIGHT: normal; MARGIN: 0in 0in 10pt" Keyword: sustainable development, economic, social and environmental effects.
