The year 2019 marks the seventieth anniversary of the founding of the People’s Republic of China. The period of major change that’s rarely seen in a century have accelerated the evolution. Meanwhile，the great power game intensified，and the global governance system and the international order accelerated the pace of change. The general development trend of international law shows that traditional and non-traditional security topics are intertwined. The institutional contention for the new territory of “Sea，out space，cyberspace and polar region” continues to heat up. The platform of legal interests is polarized，and the tendency of power expansion of international institutions is becoming more and more obvious. As a large responsible developing country，China has always adhered to multilateralism and the right concept of justice and interest，firmly promoted the democratization of international relations，committed itself to upholding and building rule of law at the international level，and made great achievements in innovating and developing concepts and principles of international law，enriching and innovating the practice of foreign-related legislation and justice，promoting development of international law through host diplomacy，furthering the reform of global governance system through practice of international rule of law，as well as developing China’s international legal theories. Looking ahead to 2020，China will focus on promoting international law in areas such as improving the discipline system of international law and personnel training mechanism with Chinese characteristics，strengthening the research of rules in new areas of international law，serving the “Belt and Road” initiative with international rule of law，and deepening study on international dispute settlement mechanism.