In the Han Dynasty, Empress Dowager Deng established the earliest kindergarten "Didi" in China, which was mainly used to train the children of the royal family, on the basis of the education model of the former Confucius Room, by clarifying the educational purpose, perfecting the management system and clarifying the educational content. Queen Deng is worried about the education of future generations. In order to cultivate imperial talents, establish the educational purpose, management system and clear the teaching content, she founded the earliest kindergarten in ancient times.

Zhou Tianzi and the governors at that time set up a "surrender room" in the palace. Among the mothers of many children, they chose the gentle, kind, obedient and cautious one to educate the prince and the prince. Every dynasty attached great importance to the education of royal children. Although there is no clear educational institution, there are also relevant personnel responsible. In ancient times, children generally went to primary school at the age of 8 to 13, and the age before going to primary school was called children. The so-called kindergarten is a learning institution specially prepared for children aged 3 to 7. Each department has a clear division of labor and clear responsibilities. However, the "children's room" is not a real kindergarten. A real educational institution needs a clear educational purpose, a perfect management system and teaching content. The "children's room" does not have these, but it is a relatively perfect nursery and the embryonic form of kindergarten.