国际私法作为法律适用法，通过多种方法进行法律选择，选择的结果不是内国法就是外国法。于此，困惑人们的矛盾焦点，是当适用外国法时，必然涉及承认外国法的域外效力和适用外国法问题。倘若在法律选择中，寻找到的准据法是外国法，与内国法做准据法所不同的是，还会遇到司法层面上的一个现实问题，那就是对外国法内容的查明。
As the law on application of laws，Private International Law makes a choice of law through multiple ways and the result of that choice is either domestic laws or foreign laws. Therefore，the contradiction should focus on the acknowledgment of the extraterritorial effect of foreign law and the application of foreign law when the foreign law is applied. In cases where the applicable law is a foreign law rather than a domestic law，the real issue about proof of foreign law will be encountered at the judicial level.
