中文摘要：

通过分析16个社会群体的收入水平与人口比重对应关系,研究中国阶层收入分配格局演变趋势与规律。在中国居民收入分配格局经历的两次重大变迁过程中,第一次使得农民阶级分化出农民工、私营企业员工、乡镇企业职工、个体劳动者及私营企业主等阶层;工人阶级分化为白领工人、个体劳动者、国有企业职工、其他企业职工、离退休人员、民营企业职工、城镇集体职工和企业经营者等主要阶层;知识分子则发展为企业经营者、自由职业者、公务员和部分白领工人。第二次变革使得其他企业职工、国有企业职工和个体劳动者先后进入中产阶层范畴,公务员则进入上产阶层。现阶段,其他企业职工、国有企业职工、个体劳动者和白领工人四个阶层属于中产阶层;上产阶层由公务员、自由职业者、企业经营者和私营企业主四个阶层构成。

英文摘要：

By analyzing the corresponding relationships between income level and population proportion of the 16 social groups,this paper tries to study the evolution tendency and law of the income distribution patterns at China＇s different class levels.During the process of two significant changes on the income distribution pattern of China,the first divided the class of farmer into farmer workers,private enterprise employees,township enterprise workers,individual workers and private entrepreneurs;the class of workers divide into white-collar workers,individual workers,state-owned enterprise workers,workers of other types of enterprises and private enterprise,retirees,workers of township collective enterprises and business operators;while the intellectuals developed to become business operators,freelancers,civil servants and partially white-collar workers.The second change promoted the workers and employees of other enterprises and state-owned enterprises together with the individual workers to enter the middle class,and the civil servants to the up-class.At present stage,the workers and employees of other enterprises and state-owned enterprises,the individual workers and the white-collar workers belong to the middle class;while the up-class consists of civil servants,freelancers,enterprise managers and private entrepreneurs.