Abstract: Institutional economics, once regarded as heterodoxy by orthodox economics and then applied in or thodox economics to analyze the system, has in fact or iginat ed in ortho dox economics. It used to be against or thodo xeconomics, but later returned to orthodox economics and formed a research norm of analyzing economic issues from theperspective of uncertainty in the system. There are differences between institutional economics and orthodox economics in research subjects and resear chmethods, which lead to conflicts between the two. These conflicts are reflected in t he former 's criticism of the latter , including disapproval of its longterm and shortterm meanings,objection to its method of model analysis, revision of some of its concepts and its unreal premises of hypothesis, andopposition to its policy o f laissezfaire as well.

摘要： 本文认为:被正统经济学视为“异端”的制度经济学作为正统经济学在制度分析中的一个应用,源于正统经济学,曾经反叛正统经济学,最后又回归于正统经济学,形成了从制度的不确定性角度来分析经济问题的研究范式;制度经济学与正统经济学在研究对象和研究方法上都存在着差异,这种差异造成了二者的冲突,主要体现在制度经济学对正统经济学的批判上,即对正统经济学的长期与短期的含义提出异议、反对正统经济学的模型分析方法、对正统经济学的非现实性的假设前提及一些概念进行了修正、反对正统经济学的自由放任政策等。