Superfluous arsenic in drinking water can do harm to human health. In this paper, a broad overview of the available technologies for arsenic removal has been presented on the basis of literature survey. The main treatment methods included coagulation-sedimentation, adsorption separation and ion exchange, membrane technique, which have both advantages and disadvantages. It concluded that the selection of treatment process should be site specific and prevailing conditions and no process can serve the purpose under diverse conditions as each technology has its own limitations. In order to gain good results, some methods should be improved. The main treatment methods included coagulation-sedimentation, adsorption separation and ion exchange , membrane technique, which have both advantages and disadvantages. It says that the selection of treatment process should be site specific and prevailing conditions and no process can serve the purpose under diverse conditions as each each has its own limitations. In order to gain good results some methods should be improved.