The invention relates to a transparent mesoporous silicon dioxide gel monolith material which pertains to the technical field of inorganic porous material, in particular to an ordered mesoporous silicon dioxide gel monolith material with large size, no crackle and optical transparentness. The material is characterized in that direct conversion of sol, gel, aging and drying can be realized at high temperature by adjusting synthesis ratio without any special protective means or complicated operation procedures. The method has a short synthesis period and simple operation steps and is easy to control. The material generated by the method has an ordered hexagonal phase mesoporous structure with 2nm to 10nm of aperture, 0.2cm<3>/g to 0.8cm<3>/g of pore volume, 450m<2>/g to 850m<2>/g of the specific area and 2.2nm of wall thickness, and the wall thickness of the structure is larger than the aperture. The transmissivity of visible light of the structure is similar to optical glass with the same thickness, thereby having wide application value in the research aspect of novel optical units, electrical units and magnetic units.