Abstract In May 14, 1948, the Zionist leader Gurion announced the “Declaration of Independence” in Tel Aviv ,announced the establishment of the state of Israel ,which is built by the Jewish natin after 1000 years of exile . In the process of establishment of the state of Israel ,the policy of two big played an important role . In this process , the support of the establishment of Israel country experienced a British led to American led process . This paper mainly discussed from the “Balfour Declaration ” published in Britain in 1917 to 1947 USA proprosed by the United Nations Palestine partition resolution through , and the eventual establishment of the state of Isreal in the process of evolution , the leading role of Britain and the United States.