Abstract: this paper represents a theoretical-methodological foray into elucidating the contribution of IT technologies to the efficiency of the modern management system. Currently, in the context of the multiple innovative changes affecting the activity of SME enterprises, there is a need to identify the most effective competitive advantages that will help companies ensure an efficient route to the market, as well as gain the trust of its customers. The purpose of the study is to develop a model of the modern management system focused on the use of modern information technologies. At the same time, among the objectives of the research we can note: a. the elucidation of the role of information technologies in the remodelling of the modern SME management system; b. Identification of changes in the management system as a result of the implementation of information technologies; c. Elucidation of the influence of the factors of the modern management system characteristic of SME. As a result, along with the progress in the methodological research approach, we used several methods such as: analysis, synthesis, induction, deduction, abduction, comparative analysis. Subsequently, we can note that the new model of a modern SME management in the 21st century is based on the use of new information technologies, which represent the fundamental competitive advantage, helping the SMEs to make their activity more efficient, as well as to draw a path towards increasing organizational competitiveness. Accordingly, towards the end of the research, we note that SMEs must infiltrate their activity with new IT technologies, software elements, which will contribute to the improvement of the management system in view of increasing competitiveness and sustainability.