Leave of bamboo have used for medicine and for food, but no used for materials of industrials. The Cell wall of bamboo leaves was composed with porous silica. The silica be extracted, will be used absorption agent, nano support, catalyst and source for silicone chemistry. In our study, Extracted silica from bamboo(ESB) leave, was gone pulverizing, burning, after grinding, stirring in 1M HCl solution, filteration, stirring in hydroperoxide and base solution, adding 0.1M HCl for precipitation of ESB, filteration and drying. Properties of ESB have been determined with XRD, ICP, FT-IR and FE-SEM. Those results of ESB have been amorphous nano porous silica.