中文摘要：

运用文献资料法、社会调查法等研究方法，对美国近半个世纪以来的体育文化发展情况进行了初步的分析。美国较早就重视了软实力的作用，并充分地利用体育文化低成本的优势，争取国际社会认同，树立国家形象。这种成功主要是其一贯的政策机制所激励的结果，对当今社会及体育发展有借鉴意义。中国政府在深化改革的过程中，已明确地认识到了体育文化软实力是大国成长的综合性要素之一。进一步学习美国发展体育文化软实力的思维与技巧，在中国文化复兴的道路上显得十分必要。

英文摘要：

Using the literature, social investigation and other research methods, the author carries out the preliminary analysis of half- a- century development of sports culture in the United States. The results show that the United States has attached great importance to the role of soft power to achieve the status of world hegemony. Fully using the low cost advantage of sports culture, U.S. successfully made great efforts to win people＇ s support, striving for the approval of international community, and building country＇ s image. Behind the success is the result of the policy mechanism of its consistent system, which is a reference to the social development. In the process of deepening reform, the Chinese government has clearly realized that the soft power of sports culture is one of the comprehensive factors of the growth of country. Therefore, studying the thinking and skills of developing soft power of sports culture in the United States is very necessary for China＇ s grand renascence.