Public-private partnership is a form of joint resources of the public and private sector, which is becoming more and more popular at the global level and in our area as well. Long-term business cooperation between the public and private partners is reflected in the exploitation of managerial, financial and intellectual resources of the private partner in order to provide high-quality products or services for meeting the public interest. The aim of this paper is to present the concept of public-private partnership and its characteristics through the conceptual framework, as well as to present the global trends of public-private partnerships and their projects. Empirical results show a significant increase in public-private partnership projects in 2017, as well as the growth of total private investment in public sector infrastructure.