最密切联系原则是十九世纪以来国际私法在选法原则方面的一个重大进展。本文对最密切联系原则的起源、演进、在各国立法中的具体运用进行了较为系统的分析,肯定了它在国际私法发展过程中的重要地位。同时对我国涉外民商事立法对这一原则的运用进行了总结,并提出了一些改进意见。 The principle of the closest ties is a significant step forward in the principles of the electoral law of private international law since the nineteenth century. This paper makes a systematic analysis of the origin, evolution and application of the principle of closest relationship, and affirms its important position in the development of private international law. At the same time, this article summarizes the application of this principle in the legislation concerning civil and commercial affairs involving foreign people in our country and puts forward some suggestions for improvement.