非正规部门、非正规就业和非正规经济等“非正规”现象已经普遍存在。文章从概念演化、统计标准、统计实践、测度方法以及对宏观经济的影响等多个角度详细地梳理了“非正规”现象的研究进展。阐述了非正规部门、非正规就业和非正规经济之间的区别与联系,概括了当前研究所面临的问题与不足,在此基础上,提出了针对“非正规”现象进行创新性研究的展望。 The informal sector, informal employment and the informal economy have become widespread. The article details the research progress of the phenomenon of “informal ” from multiple perspectives such as conceptual evolution, statistical standards, statistical practice, measurement methods and its impact on the macroeconomy. It expounds the difference and connection between the informal sector, informal employment and the informal economy, summarizes the problems and shortcomings that the current research faces, and on this basis, puts forward the innovative research on the phenomenon of “informal” Outlook.