NOVELTY - A fuel ethanol production system comprises solar water heater, solar steam boiler, fermenting can, rough distiller, and fine distiller. The solar water heater is connected with solar steam boiler and steam gelatinizing boiler by water transmission pipe for supplying hot water to the solar steam boiler and the steam gelatinizing boiler. The rough distiller and fine distiller are connected with fermenting can. The rough distiller is also connected with rough distillation ethanol storage device and rough distillation ethanol heater by pipeline for storing and/or heating n-ethanol.    USE - System for producing fuel ethanol.    ADVANTAGE - The system does not need electric energy; has low equipment manufacturing cost and production cost; has short production method; has high work efficiency and ethanol production; high pure degree; and suitable for popularization and application in area with long solar energy light application time.    DETAILED DESCRIPTION - Fuel ethanol production system comprises solar water heater, solar steam boiler, fermenting can, rough distiller, and fine distiller. The rough distiller and fine distiller are connected with fermenting can. The solar water heater is connected with solar steam boiler and steam gelatinizing boiler by water transmission pipe for supplying hot water to the solar steam boiler and the steam gelatinizing boiler. The steam gelatinizing boiler is connected with fermenting can by material transmission pipe for sending powder material in the steam gelatinizing boiler to the fermenting can by the material transmission pipe after heating and boiling as pulp material, used for making fermentation process quickly. The fermenting can is connected with the rough distiller by liquid transmission pipe. The rough distiller is also connected with rough distillation ethanol storage device and rough distillation ethanol heater by pipeline for storing and/or heating n-ethanol. The solar steam boiler is connected with steam storage can by pipeline. The steam storage can connected with steam gelatinizing boiler, rough distiller and rough distillation ethanol heater for heating and distilling. The rough distillation ethanol heater is connected with fine distiller by transmission pipe for obtaining high pure ethanol; and poured in flow return liquid of the fine distiller.    DESCRIPTION OF DRAWING(S) - The drawing shows a plan view of the fuel ethanol production system.