The Trans-Pacific Partnership (TPP) is a "21^(st) century" trade agreement. It is significant because it is an Asia-driven conceptualization of the need for high-standard rules to promote economic integration, trade, and investment. This article examines the role played by the USA after it joined the negotiations. Following an analysis and study of relevant documents, it finds that whether or not the USA can make the TPP attractive to other Asia-Pacific economic bodies will become an important factor in deciding which candidate countries will join or not. At the same time, the TPP is an investment that potentially carries high risks as well as high dividends for the future of the Asia- Pacific region. Participation in the TPP would lead to Taiwan's economy becoming more vibrant and would promote Taiwan's strategic blueprint in East Asia.