关于国际私法究竟是国内法还是国际法?在人类历史的长河中一直争论的焦点。为了厘清国际私法的这一性质,本文从自然法的角度,对国际私法国内法论、国际法论、二元论或综合论进行了分析。通过上述分析,得出国际私法最终将走向国际化。 Whether international private law is a domestic law or an international law has always been the focus of controversy in the long history of mankind. In order to clarify the nature of private international law, this article analyzes the domestic laws of international private law, the theory of international law, dualism or comprehensive theory from the perspective of natural law. Through the above analysis, concluded that private international law will eventually go international.