Rice husks waste is one can be utilized as an alternative fuel, because rice husks have contained relatively big composition the cellulose. In Malang areaEast Java of Indonesia is still a lot of rice husks, that is a great potential to make useful product. To be alternative fuel, rice husk must through several stages of the process a pretreatment process or delignification lignin, hydrolysis, fermentation and destilation. For this research, author focus on a hydrolysis process. Hydrolysis is carried out by acid hydrolysis using HCL and H2SO4 catalyst, with variation of concentrations acid and comparison rice husks and water. The results obtained from the highes glucose concentration obtained at a ratio of 1: 10 and the concentration of HCL 9% is 88,625%.