Polycondensation of phloroglucinol, resorcinol and formaldehyde with ascorbic acid (VC) and starch as the additives, using sodium carbonate as the catalyst, leads to the formation of carbon aerogels. The structure of carbon aerogels with different additives were characterized by X-ray diffraction. The specific surface area, pore size distribution and pore volume were measured by surface area analyzer. The results show that the specific surface area of carbon aerogel is up to 522 m(2) g(-1) and the range of pore size is 4-8 nm.