A new method of synthesis of bi- and tri porous silica gels containing sets of pores with different diameters has been proposed, and their adsorption-structural parameters have been studied, ft has been shown that the proposed methods allow the synthesis of silica gels with wide range of pore diameters and varied porosity. The results open a new path for use of silica gel not only for sorption, but also as an inert catalyst carrier, where the porous structure sometimes is of major importance for governing the catalytic properties. New method of synthesis can significantly improve the dynamic response of porous materials, and, respectively, make the active surface more available for reacting or adsorbed molecules.