The birth of preschool education institutions is closely related to the birth of preschool education. Preschool education institutions refer to kindergartens, nurseries and other places that provide education and care for preschool children. The emergence of these institutions provides a practical basis for the development of preschool education. In preschool education institutions, teachers can deeply understand the psychological, cognitive, emotional and social development characteristics of preschool children by observing, recording, analyzing and summarizing their behaviors and development, thus providing important data and experience support for the theoretical research of preschool pedagogy. At the same time, the development of preschool education has also promoted the continuous improvement and development of preschool education institutions. The theoretical research of preschool education provides scientific guidance and support for the curriculum, teaching methods and teacher training of preschool education institutions, and promotes the professional and scientific development of preschool education institutions. Therefore, preschool education institutions and preschool pedagogy complement each other.