Transparent hybrid silica/acrylate films were prepared under UV irradiation to improve the hydrophilicity of the glass surface.The contact angle of the water drop on the films was less than five degrees，which indicated excellent hydrophilicity.The effects of reaction time，reaction temperature，content of hydroxyl propyl acrylate（HPA）and n-propanol on the hydrophilicity of the films were discussed respectively.The scanning electron microscope image results showed that the films had porous structure and SiO2 sol particles were dispersed in the films uniformly.The hybrid films with the best hydrophilicity were under such conditions that the ratio between silica sol(ml) and HPA(mol) was 50∶0.15，reaction temperature was 40℃，reaction time was 1 h and the film coating solution was diluted using 20%(mass) n-propanol.