The aim of this research is to analyze the system and policy of USA's trade exhibition in dustry, one of the best trade exhibition industry in the world, and to gain operating know -hows by comparing it with Korea's trade exhibition industry. Specialized practical human resources training, excellent exhibition ability, plentiful nature tourism environment, cheap lodging charges and rent, well-prepared entertainment has all owed USA's trade exhibition industry to occupy about 1% of the total GDP. Thus we wis h to discover the operating know-hows of USA"s trade exhibition industry.