Market transformations in the Republic of Kazakhstan and in the regions have entered a phase of intensification: management systems and resource allocation have been fully improved, the institution of public-private property has been formed, the main market mechanisms of economic regulation have been put into effect. The mechanism of self-development of the market as a whole is gradually being launched, small business is becoming crucial. It is free entrepreneurship that is designed to intensify the further economic recovery in the regions of the Republic of Kazakhstan. Balanced and progressive development of small business involves the development of infrastructure that stimulates the activity of its development and requires the transformation of the mechanisms and format of integration of the sphere of small and large business, as one of the fundamental factors of balanced development of small business in the leading sectors of the economy. In the Republic of Kazakhstan, the support of the small business sector is one of the strategic priorities of its development. However, despite the measures taken by the state to provide support to small businesses, the dynamics of needs and industry-specific features of the development of the market of goods and services make their own adjustments to regional trends in the development of small business, forming an industry and structural imbalance in the development of small business, which requires consideration and clarification of their content. Purpose is to study the state and trends of small business development as a factor affecting the efficiency of the economy and social stability of the population. The analysis of small business development in the article is implemented on the basis of the information and statistical base of the Republic of Kazakhstan in the context of identifying trends and patterns of its development; identification, generalization and justification of the reasons for their formative and institutional approaches to their regulation. In particular, the analysis in the study is based on the materials of statistical reviews and their analysis using methods of grouping, generalization, logical analysis, system description and interpretation. The range of main directions and trends in the development of small entrepreneurship in the Republic of Kazakhstan has been studied and determined, their effectiveness has been assessed and tools to support the balanced development of small business have been proposed.