Annotation: The article identifies and analyzes the diffusion of blockchain technologies in various business areas. Common scientific methods are used: analysis and synthesis; induction and deduction; analogy and modeling; abstraction and concretization; system analysis. The study identified the impact of blockchain on business performance and the subsequent impact on average citizens. The author has defined new criteria for systematization and improvement of business using blockchain technologies in modern realities. The researches and analyzes carried out help to correctly evaluate and understand the essence of the basic principles and system of introduction of blockchain systems in projects.