1. U.s.-china relations is contains two social system of relationships between states attribute, developing countries and developed countries, the relationship between attributes of the relationship between nation properties. Many factors influence the sino-us relations, including a profound impact but often ignored by people, is the difference in culture, life value orientation of the friction and conflict. Us-china trade and diplomatic sustained rapid development, this is called the world's most important bilateral relationship between two big main bodies, which in the future will be more become the focus of attention. This paper will literature research, scientific thinking method and investigation method described the sino-us life values and its reason, explore how differences reduce and eventually eliminate this values caused by the differences and finally to imprison and interference from each other to both sides, collusion harmonious development.2. The root of the cultural contradictions of sino-american value from political, economic entity, although the difference between economic differences, but increasingly narrowed long thought paradigm, ideal realm, deal with the attitude of the method is endless and same even vary widely. Previous to many sino-us value system and the relating to the differences between Chinese and western culture from the end of the study, but with the contradiction between the difference by people of the decision. So, the analysis of the differences in normal values of bilateral exchanges and communication becomes even more importantThis article will use the method of literature and facts investigation and evidence collection of Chinese traditional culture respectively value orientation, the present values development tendency; American values formation, basic content and the development trend and the different manifestations of the same affairs and thinking process, causes the detailed analysis and discussion clearly, and eventually reach seek common ground while reserving differences common goal of the harmonious development of mutual benefit.