Mandastana village denotes wetlands village, have small rivers throughout home residents. For daily activities. farmers used river water mentioned for need wash, bath, cooking and drinking. Subsequently in progress farmers receive assistance for water puritication technologly for neads, cooking and drinking. Research method used a qualitative approach with a variant of phenomenology. Data collection techniques used a thick description while data analysis used intefactive model with four grooves that data collection, data reduction, data presentation and conclusion continuously until saturated. Conclusion adaptation of farmers' wetland towald water purification technology to use resulting water, no operating are maintenance tool for water purification technology. If program operating water purification technology finished accordingly farmers back are doing original habit to use river water for needs, cooking and drinking. Keywords: Adaptation Farmer, Wetland Water Purification Technology