This article analyzes the draft act on private international law of October 9, 2006. The draft aims to comprehensively regulate the law applicable to private law relations connected with more than one state. The act specifies, among others, the law applicable to the legal capacity and capacity to perform legal acts of natural persons, property relations between spouses, inheritance matters, and also contains a public policy clause, which excludes the application of foreign law if its application would have consequences contrary to the fundamental principles of the legal order of the Republic of Poland. The draft act also provides for the possibility of choosing the applicable law by the parties in certain cases. In the absence of an indication of the applicable law in the act, in special provisions or in international agreements, the law of the state with which the relationship is most closely connected should be applied to the relationship covered by the scope of application of the act. The draft act on private international law of 2006 constitutes an important step towards modernizing and unifying Polish legislation in the field of private international law.