Abstract: Against the backdrop of the development of the cryptocurrency market, the popularity of blockchain technology has also grown. However, the unique structure of the technology, characterized by its transparency, immutability and, in most cases, decentralization, allows it to be widely used in various areas of life. The article explores the essence of blockchain technology, as well as the degree of technology integration into the financial sector of the economy. The subject of the research is blockchain technology. The object of research is international finance. The author in the article emphasizes the nature of blockchain technology, and also studies the current situation in the blockchain industry, its implementation in the financial sector of the economy, in particular the activities of commercial banks. The blockchain industry is expanding and improving at a steady pace, finding its constant use in both public and private finance. In this direction, active work is also being carried out in Russia. However, due to a number of key limiting factors, to date, blockchain technology has not been integrated in practice to the extent that it could allow it to change the structures of international or individual national finance. Contrary to expectations, the speed of blockchain implementation is slower than that of the Internet technology, which is often compared to the development of blockchain technology. However, despite this fact, the blockchain has gained a foothold in various aspects of international finance and plays one of the key roles in accelerating the process of digitalization of this sector of the economy.