Revisiting Kindergartens in Three Cultures is a follow-up study of preschool education experts in China, Japan and the United States. We can feel the preschool education in different cultures, which is very vivid and interesting. Tobin, one of the authors, sells documentaries on his personal website, but it is very expensive for poor students. It should be about 2000 yuan when converted into RMB. Fortunately, he had seen it in class when the teacher played it. If there is an opportunity, he must collect a set of CDs, whether books or documentaries. Preschool education is the earliest education, which passes on life style and production experience to the next generation. Due to the different levels of productivity development in different periods, the requirements for future producers are also different, which leads to different educational contents, forms and development levels. The level of production in primitive society is low, and the content and form of preschool education are simplified, with production experience and life experience as the mainstay, relying on oral teaching and mechanical imitation. The level of agricultural social productivity has been greatly improved. Preschool education is mainly carried out in the family, and the content of education has been expanded. In addition to life care and physical maintenance, more attention is paid to character education and cultivation. In the early pre-school education in industrial society, with the improvement of socialization of production and the decomposition of production process, women, children and farmers who lost their land joined the factory, and workers could not do without machines. Therefore, institutions or places have emerged to take care of preschool children. This is the earliest preschool education institution, and there was no real preschool education institution until the end of 19. The main preschool education researchers are Dewey and Montessori. Domestic researchers mainly include: Tao Xingzhi and others.