Bilingual kindergarten is a kindergarten that combines mother tongue and English, and it becomes the language for children to communicate with Chinese at the same time in a certain environment. Bilingual kindergartens provide opportunities for children to communicate in English in their daily lives. English teaching is not just a weekly interest activity, but really practical English, so that children can learn useful education for future English learning. The purpose of English teaching should be subordinate to the general goal of preschool education, that is, to improve children's language communication level and lay the foundation for cultivating a global person. English teaching should do the following: First, cultivate children's interest in English through English activities. Second, through English interest activities, cultivate children's interest in understanding the cultures of all countries in the world, and know how to respect the customs and habits of all ethnic groups from an early age. Thirdly, to carry out bilingual activities for children, it is necessary to create a learning environment with English characteristics for children and adopt corresponding teaching methods suitable for children, so that children can gradually be influenced by the second language in such an environment. Bilingual teaching can help children learn English in an unconscious language environment, cultivate their listening habits, stimulate their interest in listening and speaking, and improve their enthusiasm for speaking. Bilingual teaching can promote the common and unified development of children's knowledge, memory and imagination, cultivate children's ability to communicate with others and improve their enthusiasm for interpersonal communication. Although bilingual education is beneficial to children's development, it is worth reminding that children in China still regard learning Chinese well as their primary task, and can only carry out appropriate bilingual education on the basis of unconditional mother tongue education, instead of putting the cart before the horse.