Abstract: After the World War Ⅱ,the U.S.Occupation of Japan directly led to the Japanese reform of nonfascistization,and Japanese foreign policy has also been limited in the framework of American geopolitical strategy.Because of this,the normalization process of Japanese state was closely linked with America’s Asian geopolitical strategy together in the postwar.During the cold war,Japan acted as American sentry in Asia,and acquired “independence” and international space under the San Francisco System.After the Cold War,America pursued the global hegemony strategy,Japan seized the opportunity to strengthen military alliance with the United States to expand its autonomy.Especially in 21st century,Japan implemented to send troops abroad by participating in the war on terror.In recent years,the United States implemented the strategic shift,and “AsiaPacific Rebalancing”,Japan took the opportunity to speed up the constitutional amendment activities,lifted the ban of the military to accelerate the pace of “normalization of state”.

Key words: Japan, normalization of state, America, geopolitical strategy