本文从根本违约构成要件的基本认识出发从学理上进一步探讨了根本违约的具体认定标准,接着研究了各国法院以及我国法院对《联合国国际货物销售合同公约》(下称CISG)根本违约构成的司法上的认定标准。从本文的研究结果上看,虽然CISG对根本违约构成要件做了界定,然而如何理解CISG对根本违约要件的规定,对其认识和理解应该持何种标准,在学术界及各国司法界目前仍然存在不少争议,尚无一个统一的标准甚至是基本的共识。 Based on the basic understanding of the essential elements of the fundamental breach of contract, this article further explores the concrete criteria for determining the fundamental breach of contract from the academic point of view, and then studies the judiciary formed by courts in various countries and by the courts of our country on the fundamental breach of contract of the United Nations Convention on the International Sale of Goods (CISG) On the identification criteria. From the results of this study, although CISG defines the essential elements of a fundamental breach of contract, how to understand the CISG’s requirements for fundamental breach of contract, its understanding and understanding of what standards should be in the academic community and the judiciary of all countries is still There are many disputes, there is no uniform standard or even a basic consensus.