Abstract: The synthesis of nanoporous silica gel using nonionic surfactant as template and soluble glass and acid as raw material was studied. The removal of templates is an important process. Results show that methods for removing the organic component have great effects on the structure of synthesized silica gel. Heating temperature of above 200 ℃ may make the nanoporous structure of synthesized silica gel collapse. Extraction shows the partial removal of the organic template and extreme slowness. Microwave digestion (MWD) shows many benefits over other methods such as extreme rapidness, lower structural skinkage, larger surface areas and pore volumes, and retention of a hing degree of silanol groups.