Abstract: Based on the practical data from the field survey conducted in 2004 by the authors, the official network bulletin and the statistical materials, this paper studies the distribution differentiation of the immigrants in the three areas of centre, near suburb and outer suburb of Beijing in their original hometowns, education level, age structure, employment, unemployment, professional training, income, consumption and future planning and so on, for the further understanding of the regional distribution differentiation of immigrants in the other large cities of China. This paper found: 1)Distribution differentiations of the immigrants in their age structure, time of their staying in Beijing, education level, employment, income, consumption, housing and willing for future migration are very clear in the three belts in general, and the characteristics of regional distribution differentiation of the migrants in the city proper in some respects are particularly different form those of the immigrants in the near and outer suburbs. 2)The city proper is the major settlement area for the immigrants with nearer hometowns to Beijing, longer stay time in Beijing, higher income, relatively stable employment etc., but with lower education level than those of the immigrants in near and outer suburbs. 3) Near and outer suburbs are the major settlement areas for the immigrants with farther hometowns, shorter stay time in Beijing, lower income, relatively unstable employment but higher education level and so on. 4) Some similar phenomena of the immigrants might be found in the other big cities in China, so it is an interesting question which needs further to study.