This is the first time that I have come into contact with the concept of children's literature so formally. I think this is not only helpful for my writing, but also helpful for me to understand the development of children's literature. Children's literature is the earliest literature that should be accepted. Accepting excellent children's literature works from the beginning will have a far-reaching impact on people's life development. Let me talk about the educational function of children's literature to this research. First of all, the educational function of children's literature lies in promoting children's healthy growth. It is a process of reading and appreciating children's literary works, at the same time, it inspires and educates children subtly in thought and morality, and is infected and influenced in emotion, sentiment and spiritual realm. Children's literature can love nature through the content of works. Because of limited knowledge, children know little about nature. Children's literature can introduce children into the natural world they explore with its vivid images, interesting plots and lively brushwork, thus stimulating their curiosity and thirst for knowledge, stimulating their strong interest in understanding nature and cultivating their interest in loving nature. For example, children read Spring Rain, Tick-tock, Mao Mao Rain! The grass said: Come down, come down, I want to sprout. The pear tree said, Come down, come down, I'm going to blossom. Mai Miao said: Go down, go down, I want to grow up. Tick tock, tick tock, it's raining! I have a preliminary understanding of the spring rain, and there are many such nursery rhymes. Secondly, children's literature can also cultivate children's richness and increase their sense of humor. Children's emotions are fragile and sensitive, and they especially need emotional care and comfort. In daily life, children not only seek warmth and sympathy from adults and friends, but also seek happiness from literary works. The appeal of literary works can enrich their feelings. Excellent children's literature works are always good at showing the poetic beauty between people and between people and the world with humorous and delicate style, thus giving children a strong emotional experience. For example, children can watch some children's programs such as The Tree of Wisdom when adults have no time to play with them. Children can get a good education and exercise, but also achieve the purpose of entertainment. Finally, children's literature plays a positive role in building children's self-confidence, cultivating their self-awareness and cultivating their adventurous character.