MF aerogels were prepared from Melamine(P) and Formaldehyde(F) by sol-gel and supercritical drying process. The structure and function of the MF aerogels were characterized by means of SEM, TEM, BET and XRD, and the results indicate that the MF aerogels are an amorphous material with large specific surface area (1 015.98 m2/g) and small pore diameter(5~30 nm), have continuous nano-network and porous structure and it is hopeful for application in ICF experiments.