Since 1990s, the USSR collapsed have marked the vanish of Cold-War's bi-polar system, subsequently, the superpower America emerging in a short period, but the international community more talked about the power structure of co-managing international affairs under U.S. and China after 911-evidence and the financial storm of 1997. In the field of U.S.-Sino interaction, this paper adopt the dialectical style of positive-negative-synthetic to study the present position and future evolution about its relation, namely in regional or worldside politics under the two powers structure of U.S.-Sino, this paper offer a oppositive mode of policy spectrum to research the relation of U.S.-Sino. The bilateral interaction of this two powers will be a dialectical process or outcome which will shape three possibilities: spiral rise, horizontal development and downside trend.