The main equipment of refined distillation device for ethanol is tower. The equipment uses the principle that the boiling point of ethanol is lower than that of water and their solution. It applies the temperature that is higher than the boiling point of ethanol slightly to heatand vaporize dilute solution to be recovered. The steam of high Concentrated ethanol is vaporized disillation tower and than cooled and recovered by condenser. In this way, ethanol that is in conformity with the requirement is got.