“诺思第二悖论”是新制度经济学中的一个重要问题,然而目前学界对其研究却不多。本文在交易费用与制度变迁的基础上,通过构造一系列的前提和假设,应用生产力与生产关系的相互关系研究制度变迁的发生,并比较制度变迁发生前后的交易费用,最终破解了“诺思第二悖论”。此外,本文还就学术界对“诺思第二悖论”的其他解释进行了评述。 “North ’s second paradox ” is an important issue in the new institutional economics, however, there is not much research in academia at present. Based on the transaction costs and institutional changes, this paper constructs a series of preconditions and assumptions to study the occurrence of institutional changes by applying the interrelationship between productive forces and production relations, and compares the transaction costs before and after institutional changes, Think second paradox ". In addition, this article reviews the other explanations from the academic circles about the second paradox of North.