符合公共利益是公用征收的前提,而公共利益又是个不确定的法律概念。在美国的判例中,关于如何判断公共利益大致可以分为严格解释阶段、宽严标准并存阶段以及宽泛解释的阶段。现在法院的主流判决基本上对公共利益还是采取宽泛的标准来理解。本文主要介绍了美国公用征收判例中公共利益判断标准的历史演变。 In line with the public interest is the premise of public collection, and public interest is an uncertain legal concept. In the U.S. jurisprudence, the public interests can be roughly divided into stages of strict interpretation, strict standard coexistence, and broad interpretation. The mainstream judgments of the courts are basically still widely understood in the public interest. This article mainly introduces the historical evolution of public interest judging criteria in American public collection cases.