Jiayin English is a professional English education institution, suitable for children aged 3- 15. Its teaching materials are rich in content, focusing on cultivating children's listening, speaking, reading and writing abilities, and combining daily life scenes, so that children can learn English in a familiar environment. In addition, the teaching method of Jiayin English is also very distinctive. By using game-based teaching, children can learn English in a relaxed and pleasant atmosphere, and improve their interest in learning and self-confidence. The learning stage of Jiayin English begins at the age of 3 and takes 5- 10 years, that is, from grade three to grade two.