Activated carbons with selective mesoporosities were prepared from the mixture of Morwell coal and metal (Fe, Ni, Co) complex. Pore structure of the activated sample were determined with N_2 adsorption isotherms, and metal-oxide particles included in the carbon matrix were characterized with x-ray diffraction patterns and TEM photographs of them. It was estimated that formation of mesopores in the activated carbons is related with migration of oxide particles. Dependence of metal kinds upon pore structure was also discussed.