This paper investigates the issues of the management improvement of business-processes on conditions of digital transformation. Based on studies of domestic and foreign scientists, it was established that the intensive process of digitization of the economy generates the emergence of new digital technologies and solutions, the specificity of their impact on business models of enterprises needs additional scientific study. Generalized conceptual diagram of the system modeling process is proposed. It has been found that digital transformation has led to changes in the business process management of enterprises, which have been driven by improved efficiency and manageability of operations, and have become a challenge oriented to the experience of successful global companies. Modeling the digitized business process network of JSC Ukrtransnafta, which was carried out using BPMN Visio 2010 Premium. It is determined that the efficiency of functioning of the modern state is largely determined by the speed and quality of decision making. This is not possible without digitization in the new paradigm of digital transformation. It allows not only to digitize the data, but also to improve internal discipline and speed up the decision-making process.