The eleven Japanese coals over the range from lignite to authracite and five foreign caking or coking coals were elected as coal samples. The coal specimen was pulverized to pass through a 28 and stand on a 60 Tyler mesh sieve. The bright coal of specific gravity less than 1.30, was isolated by the float-and-sink method using mixture of benzene and carbontetrachloride. The petrographic, proximate and ultimate analyses of bright coal were done. Japanese coal has a little inertinite, many exinite, and many mineral. The basic material of durite in Japanese coal is degradinite and that in foreign coal is inertinite. The value of H/C in Japanese coal is larger than that in foreign coal over the range from about C 70% to about C 90%. The moisture content of Japanese coal is smaller below about C 88% and is larger above about C 90% than that of foreign coal. The volatile matter content of Japanese coal is larger than that of foreign coal below about C 88%. The calorific value of Japanese coal shows a maximum at C 85-86% and that of foreign coal shows a maximum at about C 90%. The aromaticity, fα, increases suddenly above about C 85% in Japanese coal and above about C 90% in foreign coal. The aromaticity of Japanese coal is smaller than that of foreign coal below about C 90%.