As an auxiliary teaching material for primary school students, the electronic phonetic wall chart is a good teacher to help children learn Chinese Pinyin. Recorded by a senior TV announcer, the pronunciation is accurate and the sound quality is sweet, which is the guarantee for children to learn Mandarin well. With multiple functions of music, teaching and testing, parents can save effort and worry, and the learning effect is remarkable. It can promote the development of children's language learning ability and make the learning content and process more interesting. Using a new generation of microcomputer language chips can develop children's intelligence, improve their interest in learning and enhance their practical ability and creativity. Rich audio and video, learning and entertaining, rich in content.