Introduction. In the context of implementing the Federal State Educational Standard for Primary General Education/General General Education, the development of universal research-based learning activities in students is a key task of modern education. Its effective solution directly depends on the professional readiness of the teacher to act not as a transmitter of knowledge, but as an organizer, tutor, and methodological mentor of children's research. However, an analysis of pedagogical practice reveals a contradiction between the growing need of schools for teachers capable of high-quality design and support of children's research, and the insufficient level of development of the relevant competencies among graduates of pedagogical universities. In this regard, the problem of developing and assessing the readiness of future teachers for this type of activity acquires particular scientific and practical significance. The aim of the study is to analyze the results of diagnostics of the level of readiness of future teachers to organize research activities of schoolchildren. Materials and Methods. The study utilized methods of theoretical analysis of psychological and pedagogical literature, survey, testing, and solving professionally oriented cases. Results and discussion. An operational definition of readiness as an integrative professional and personal state is proposed. Indicators of future teachers' readiness to organize schoolchildren's research activities were determined. The results of a study examining future teachers' understanding of the essence of research activity, their knowledge of research methodology, and their ability to construct a methodological framework for research, as well as students' readiness to design and implement methodological support for schoolchildren's research activities, were analyzed. Conclusion. The practical significance of the study and areas of activity for transforming the teaching methodology of individual disciplines at the university in order to improve the quality of preparation of future teachers for organizing schoolchildren's research activities were determined. The study materials can be used in the development of programs for advanced training and professional retraining of teachers, the creation of diagnostic and methodological tools for supporting project-based research activities of students, as well as in the content of pedagogical disciplines in the system of higher and continuing professional education.