Cordierite ceramic was prepared by sol-gel method. It was analyzed by Infrared spectroscopy and X-ray diffraction patterns that the ceramic was chemically mixed in molecular level and transformed to $alpha$-cordierite at 125$0^{circ}C$. Water vapour treatments for aging and drying process were conducted to get porous cordierite with thermally stable pore structure. It resulted in 220-410 $m^2$/g BET surface area and mesoporous structure with mean pore diameter, 40$AA$. Compared to naturally dried ceramic, the ceramic showed superior thermal stability of surface area up to $700^{circ}C$. Surfaces of porous cordierite ceramics were observed by SEM.