Pre-school education is restricted by social and economic development: ① Social and economic development promotes the emergence of pre-school institutional education. ② The level of socio-economic development determines the scale and speed of preschool education development. ③ The level of socio-economic development restricts the structure and layout of preschool education development. ④ The level of socio-economic development restricts the task, content, means and teaching organization form of preschool education.