The article deals with technological and managerial aspects of digital transformation of Russian SME business models. The purpose of this article is to develop theoretical and practical approaches to the study of SME business models based on the index of digital transformation of Russian SMEs to justify effective policies for sustainable socio-economic development of the regional and national economy. The article provides quantitative estimates of various parameters of SME business models digitalization using the index of digitalization for SMEs, and also notes the uneven digital development of SME business models in the structural aspect of the array of economic actors, as well as for different sectors of the economy and indicates the existing differences in “digital maturity” business models between SMEs of the capital and regional SMEs. The differences and specific features between different types of business models of SMEs depending on their degree of digital maturity are noted.