This monograph consists of four parts, the first part of which examines the economic essence of banking ecosystems and the theoretical foundations of their formation in the context of the transformation of the banking system, the concept of banking ecosystems, the need for their formation and their importance in the banking system, the world experience in the development of banking ecosystems and their classification, the legal framework for the formation and development of banking ecosystems in Uzbekistan, and the scientific, theoretical and organizational basis for the organization of the network.