各国学者对中等收入陷阱形成原因的研究主要通过国际比较观察、经验总结,结论各异。本文从经济增长理论模型出发,通过对新经济增长两部门模型进行一般化改造,从经济模型推论中等收入陷阱形成的根本原因,得出了知识生产效率的不足是中等收入陷阱形成的根本原因,为此进一步提出了中国摆脱中等收入陷阱的三大政策建议。 The scholars of various countries mainly study the causes of the middle-income trap through international comparative observation, experience summary and conclusion. Based on the theoretical model of economic growth, this paper generalizes the two models of the new economic growth and deduces the root causes of the middle-income trap from the economic model. It concludes that the lack of knowledge production efficiency is the root cause of the middle-income trap. To this end, China further proposed three policy proposals to get rid of the middle-income trap.