Abstract<\/strong><\/p>\n\n\n\n The article considers the features, trends and patterns of the development of digitalization of territorial and economic systems. IT technologies have been implemented in an integrated model for assessing the sectors of digitalization of territorial and economic systems, which are determined on the basis of the concept of \u201cIndustry 4.0\u201d and aimed at increasing production and servicing public needs, increasing the competitiveness of the state. It is substantiated that the process of digitalization of the territorial economic system is formed on the basis of Internet economy (environment for introducing e-business) and \u201cdigital economy\u201d \u2012 a modern type of management, characterized by methods of resource management in production, distribution, exchange and consumption. The hierarchical structure and model of digitalization of territorial and economic systems are presented. Methodical approaches to the assessment of digitalization of territorial and economic systems are determined. Scenarios for ensuring the development of digitalization of sectors of territorial economic systems on an innovative basis are grouped. The analysis of the development of the Internet trade market in Ukraine is carried out. The volume of production (services) by types of economic activity in the field of digital territorial and economic systems is determined. The dynamics of the trend of financial results of enterprises in the field of telecommunications, computer programming, consulting and information services in Ukraine is presented. Forecast indicators of the development of digitalization of territorial and economic systems, including in the production of information and communication technologies, services and use of computer equipment have been calculated.<\/p>\n\n\n\n