This study is to understand whether remains to stay some level for the importance of the knowledge service industry, trade status, and the level of international competitiveness currently in Korea and China. And is to analysis to stay competitive level in the international market. As a result, this study's purpose is placed to suggest the promotion for Korea and China's knowledge service industry and future prospects and any direction in the international market. Therefore this study examined knowledge services industry of Korea on the basis of a range by the Ministry of Knowledge Economy in 2007, and examined trade status and service balance of knowledge service industry in Korea and China. And to catch Korea and China's position in the international competitive, this study analyzed by using the trade balance contribution, international market share, trade specialization indices, Revealed Comparative Advantage Index of knowledge service industry of Korea and China. As a result, Korea's chronic deficit of knowledge services industry is in a situation that doesn't escape. In particular, fee services including business services, travel services, patent services one of a total service balance is 67% that they occur the deficit, and the international competitiveness in these sectors were very vulnerable. However, sectors 4 - construction, transportation, finance, and government - showed services surplus and trade also showed export specialization. In addition, construction, transportation, and financial services in international competitiveness had comparative advantage and competitiveness also has been enhanced. China's service industry is poor international competitiveness as well as in Korea and comparative advantage in the market do not properly secured. Therefore, the Chinese government widened the degree of openness and if they don't actively support the policy of service industry for the international competition, they will be deprived an opportunity that take to secure high value in 21 centuries.