1. As an important field of preschool education, the basic tasks of preschool children's language education are: to provide a language environment for Putonghua and cultivate children to speak Putonghua correctly; Create a free and relaxed language communication environment, cultivate children's language communication habits and improve children's language communication ability; Develop children's language understanding and expression skills; Actively guide and improve children's ability to listen to and appreciate children's literary works; Stimulate children's interest, habit and ability in reading and writing; Prepare for children to continue their studies after entering school.

2. Preschool children refer to children who have not yet reached school age. From a global perspective, countries have different regulations on the school age of children, generally 6 or 5 years old, so the age limit for preschool children is not the same. At present, the school age of children in our country is 6 years old, so all children before the age of 0 ~ 6 are preschool children. In a certain period, the statistical information of preschool children is an important basis for the country to develop children's health care and arrange health care institutions.