With the deepening of reform and opening up, my country’s preschool education has entered a vigorous development. At the same time, higher requirements are put forward for the field of preschool education. Preschool education is an important part of education, and preschool education is the foundation of basic education. However, the informatization construction in the field of preschool education in my country has just started. In order to implement the planning requirements of the Ministry of Education on strengthening the informatization construction of preschool education, build a digital platform, improve children’s quality, promote the harmonious development of children’s body and mind, improve professional ethics and the professional level of preschool education practitioners with the help of modern new media, and meet the professional development and sense of achievement, acquisition, and satisfaction of preschool education practitioners. Taking multiple measures to ensure the diversified needs of preschool education practitioners is the important and only means for the stable, comprehensive, and sustainable development of preschool education. The data visualization platform of IOT architecture designed in this paper for edge computing ensures the application of massive data in preschool education courses, ensures the stability of system data transmission, and realizes the visualization of IOT terminal data. Therefore, the introduction of data mining technology in this paper can improve the utilization of resources, provide support for teachers, students, and ordinary users, and enhance the versatility of the preschool education resource platform.