农民工市民化进程迟滞是影响当代中国社会经济结构顺利转型的一大基本问题。本文从二元制度、农民工自身禀赋条件、社会歧视、社会资本、制度变革成本等几个方面,深入分析了农民工市民化迟滞的主要原因。 The sluggish process of migrant workers’ citizenization is a major issue affecting the smooth transition of the social and economic structure in contemporary China. This article analyzes the main reasons for the delay of citizenization of migrant workers in terms of dual system, endowment conditions of migrant workers themselves, social discrimination, social capital and system reform costs.