Bagasse is one of the important biomass sources, which is used as a fuel in the sugar industry. As a result, large quantities of ash were generated and create a serious disposal problem. The aim of the present work is to utilize the waste material bagasse ash as a valuable material to obtain nanosilica. The high percentages of pure and nano sized silica was synthesized from bagasse ash by solgel with reflux method. The synthesized nanosilica characteristic parameter were studied using various techniques such as XRD, FTIR and SEM with EDS. X-ray powder diffraction pattern of the nanosilica confirms the amorphous nature of silica. SEM results show that the treated bagasse ash have different morphology with various size while synthesized nanosilica is in
spherical with nano level.