Preschool education plays a very important role in the training and cultivation of children's language functions, among which children's literature is one of the important components of preschool education. This is mainly because children's literature works express all kinds of language information in the form of text, so the relevant personnel engaged in kindergarten education are very recognized by this kind of education. Children's literature plays a key role in preschool children's language training and practice. This paper mainly introduces and analyzes the importance of children's literature in preschool education, which is of great significance to promoting the development of preschool children's language education and needs every preschool educator's attention.