China has long term trade deficit in its service sector; on the contrary, there is a large trade surplus in the same sector for the US and other developed countries. This article gives a comparative analysis of service export competiveness between China and on the basis of defining the evaluation system on export competitiveness in service export. By comparing the absolute indicator and three relative indicators, namely, the two countries’ net exports, international market share of service exports, trade competitiveness index and revealed comparative advantage index, the paper concludes that the United States has a strong export competitiveness in technologyintensive services, while China has a relative comparative disadvantage in technology-intensive services, but its export competitiveness is growing. China’s export competitiveness of the tourism service sector and transport service sector is gradually weakened. Finally, according to the conclusions of comparative analysis, the paper proposes some suggestions