Ben Gurion was the leader of the Zionism Movement characters, known as "the father of modern Israel." In half a century before the founding of Israel in half a century, his immigrant thoughts and practical activities has produced important influence on the establishment of the state. This paper specially studies the idea and practice of the project. The article is divided into three parts.

    The first section discusses mainly the idealism features of Ben Gurion’s immigration thought and practice between 1903 and 1935. At that time in relatively loose international environment, in order to persuade more jewish immigration to Palestine, Ben Gurion play "labor vanquishes" theory .He put the jewish labors as Zionism practitioners,actively committed to Jewish Labour ‘s independent and united life, thus he will depict Palestinian as an attractive ideal picture.

    The second section through three examples discussed Ben Gurion’s realism characteristics between1935 and 1945. In the highly stressful international environment between pre-war and wartime, Ben Gurion tries his best in the international society ,and exert influence on UK through balanced Arabs by power of American jews, so that smooth the strict limits on jewish immigrants; through the "Jewish Federal" advocates he insisted on immigration, at the same time, alleviate the dispute with American jews, British and Arabs; for saving jewish children and decreasing the war influence, and trying to acquire the goodwill support of the Britain authorities, the Soviet union and the Turkish neutral government and Romania Nazi authorities. These reflect the organic unity between the principle and flexibility.

    The third section discusses mainly Ben Gurion’s radicalism features of immigration thought and practice between 1945 and 1948. In the postwar under the international environment of British Jude relations is growing tension, on the one hand Ben Gurion thought of the right of immigration to Palestinian as the jews’ survival guarantee, and he putted forward radical immigration requirements to Britain in the United States, the survival and guarantee in diplomacy with radical attitude to Britain ; On the other hand took radical struggle means to cause violence in the Palestinian unceasingly ,gradually improved violence level, and actively led illegal immigrants, which commissioned the serious confrontations with ruling Britain authority. Thus, ultimately the British decided to end the appointment rule in the Palestinian.

    Keywords: Ben Gurion; Immigration thought and practice; Zionism,; Palestinian