Abstract: Phloroglucinol-formaldehyde(PF) aerogels and carbonized PF (CPF) aerogels were prepared from Phloroglucinol(P) and Formaldehyde(F) by sol-gel, solvent exchanging, supercritical drying and carbonization processes. The aerogel has a large specific surface area, continuous nano-network and porous structure. The density and mean porosity radius will enlarge after being carbonizied, while the specific surface area will be influenced little. The micro-structure and density of aerogel are controlled by concentration of total reactants and catalyzer, respectively. Aerogels with different micro-structure and different density fit for ICF targets can be prepared by optimizing synthesis conditions.