A new method has been demonstrated for the extraction of cellulose from waste Palm kernel cake using acid base treatment. The method was giving 19.19% of cellulose. The FT-IR of the extracted cellulose was shows the present of the main functional groups at the expected range. Cellulose extracted from waste Palm kernel cake was hydrolysed to glucose in 4 h, with 100 % of selectivity at 100 oC. The catalyst is stable during the hydrolysis.