本文试图从J.Q.亚当斯在与欧洲的外交斗争中，坚持美国的孤立外交传统，维护“美洲体系”这一角度出发，论述他在“门罗宣言”的三个原则的形成过程中的作用，得出结论：J.Q.亚当斯对“门罗宣言”的制定起了决定作用，他使“美洲体系”原则化、具体化为“门罗宣言”。 This article attempts to discuss his role in the formation of the three principles of the Monroe Declaration from the perspective of JQ Adams in his diplomatic struggles with Europe, adherence to the isolated foreign diplomatic tradition of the United States and safeguarding the “American system.” Conclusion: JQ Adams played a decisive role in the formulation of the Monroe Declaration. He made the “American System” principle more specific as the Monroe Declaration.