Domestic and world experience shows that the success of the functioning of the primary school education system is determined not only by its internal factors, but also by the degree of readiness to this process of children at the stage of preschool upbringing and education (PUE). In this regard, special attention is paid to the problems of development of the PUE system in the Republic of Kazakhstan, both from the point of view of legal regulation and in the context of monitoring of the state and evaluation of its development. In the article it is analyzed the main tendencies of development of the RK PUE system and content of procedure of the assessment of the development level of regional systems of preschool nurture and education of the republic; it is given the analysis and assessment of the state, problems and tendencies of development of system of preschool upbringing and education of Pavlodar region and its position in the national ranking of educational systems of the regions of Kazakhstan