美中軍事關係之起伏隨著兩國國家利益、領導人特質、國際情勢等而定。 / The United States-China’s military relationship has undergone uneven developments since 1979. The main theme of this thesis is that the bilateral military relations have been experienced periods of better cooperation, and ones of suspicion and confrontation. The research questions of this thesis are as follows: What are the potential risks and benefits of mil-to-mil relations to the U.S. and China security? What are the obstacles of the two militaries interaction? What is the U.S. and China, respectively, debating over regarding military relations? This thesis focuses primarily upon the relationship of two militaries relevant to interests of their countries, changing international politics and leaders’ perspectives by reviewing crucial historical events. The author attempts to explore the evolution of the U.S.-China military relations, which are influenced by the changing of the international environment, domestic issues, national interests, and the prospective of leaders after the Post Cold War. Also this paper will try to explore the intention of why these potential opponents cooperate. This thesis intends to dig out the mentalities of the leaders on both sides in establishing their military relations. The author would also adopt the Morgenthau’s rational approach (interests in reaching value-maximizing choices), Allison’ bureaucratic politics approach (decision-making of the President with his inner circle of advisors), and Gilpin’s international system (states tend to expand interests as their power grows) to examine the military relations. The framework is illustrated as follows: Chapter one gives the background stories of the bilateral relations, the purpose and methodology of this writings. Chapter two elaborates U.S. interests in China, and U.S. Policies concerning China. Chapter three further explores China interests in U.S., and China policies concerning the U.S. Chapter four describes the U.S.-China military relations since the Carter Administrations. Chapter five explores the U.S. and China views of their military relations. Chapter six lists constraints of U.S.-China military relations, and concludes with findings and conclusion.