International relations are interactions mainly between states and between international organizations.Since states and organizations are made up of people,these interactions are influenced by human nature.This is the same for Sino-U.S.relations as can be seen by recent developments which show the influences of human thinking and cultural values.The improvement seen in their relations has been cemented by a fostering of mutual understanding and commonality of cultural values.Positive development acquired during diplomatic interactions offer useful lessons for future cooperation.Relations between China and the U.S.can be further improved by learning from history,having a clearer perception and building mutual trust.