1. The government attaches great importance to preschool education. From 65438 to 0975, the Norwegian government promulgated the Law on Early Childhood Education, which clearly defined the objectives and contents of early childhood education, formulated a plan, budget and supervision system, and gave strong support in terms of policies, funds and supervision.

2. Changes in social and cultural environment. With the development of social economy and the improvement of women's status, the size of Norwegian families is gradually shrinking, and parents' time and energy are not enough to take care of their children comprehensively, so more and more parents send their children to early childhood education institutions.

3. Development of professional fields. Since 1970s, a number of specialized educational institutions and preschool teachers have been formed in preschool education in Norway, which has improved the quality and level of preschool education.

4. Pay attention to the research and practice of preschool education. Since 1970s, many universities and research institutions in Norway have begun to devote a lot of energy to the research in the field of preschool education in order to promote the practice and improvement of preschool education.

Based on the above, we can see that the rapid development of preschool education in Norway is due to the equal emphasis on policy, society and professional fields, and the emphasis on research and practice, which has comprehensively improved the quality and popularization rate of preschool education.