| In the end of 1960's, on the reality that America was descending, Nixon Administration, facing the situation that Soviet was aggressing fully in the whole world, made a shocking decision to change the former policy of isolation and blockage and suppressing towards China and re-develop their relationship with an attitude of equality, amity and comprehension. This decision not only ended mutual hostility which had been more than 20 years in the past between China and U.S., but also produced the more important influence on international structure and form at that time, and even later. Historically, this heroic action did not turn out to be "strategy for gaining time" and the tool that eliminated the crisis for the American politicians and became a flash in the pan, but opened a new era named" peace and development" for world topic. So the discussion about the reasons for changing the policy of Sino-treating of Nixon's Administration can help us comprehend the cause and the effect of the many problems in Sino-American U.S. relationship today. As a result, the study of this problem has an important realistic meaning.The thesis, following the track of materialistic conception of history, combining the historical research methods and the theories of the international political science, investigates synthetically the reasons of Sino-treating policy of Nixon's Administration and analyzes the policies inherited and changed. The thesis focuses on the three main reasons that affected Nixon's Administration to change Sino-treating policy and a dialectic analysis on some concrete problems with a hope of a breakthrough.This thesis comprises three parts: the preface, the main body and the remark.The preface mainly illustrates the motive of this problem and the domestic and international research condition of this problem at present. Nixon's Administration opened the logjam in Sino-American relationship. In a way, it alleviated the widespread nervous atmosphere in the whole world that resulted from the Cold War and was praised by the most peace-loving people. Research on this problem is abundant in our country, and those of the foreign academic articles enriched our understanding. Because the ages and the views of argument are different, research on this problem is not synchronous with ages. The author will make further research in this thesis on the basis of a great deal of data and information and try hard to make a breakthrough. |