中文摘要：

中产阶层是伊朗社会结构中的重要组成部分，其内部根据教育背景分为传统和现代两类。巴列维王朝时期，伊朗正处于现代化转型阶段，中产阶层壮大了，且群体类型更多样化。文章用社会阶层分析法，以职业群体为研究单位，对这一时期中产阶层内职业群体的变化进行对比性研究。通过职业群体相关数据的整理及对比，认为：这一时期中产阶层在快速增长，新兴社会群体如中小资本家扣个体经营者壮大起来，白领工人和技术官僚等群体大量涌现；土改的推行产生富农、中农和中小地主，成为中产阶层的农村部分；受国家经济政策的影响，乌莱玛和旧官僚群体等传统中产阶层衰落了。中产阶层迅速发展的结果是给伊朗带来不安定因素。

英文摘要：

The middle stratum was an important part in Iranian society. It is divided into the traditional part and the modern part according to the educational background. The Iranian social structure was in the stage of transformation during the Pahlavi Dynasty. The two parts of the middle stratum polarized and were rebuilt. Using social stratum analysis, this paper, based on professional groups, analyzed the evolution of these groups as well as theirs causes. Relative materials proved that middle and small capitalists and self-employed individuals increased rapidly. White collar workers and civil servants emerged in large numbers. Rich peasants and minor landowners expanded after land reform. However, the Ulama stratum and the traditional bureaucrat stratum declined. The increasing middle stratum brought instability to the Iranian society.