According to the query of Yanian APP, Yanian APP is based on the theory of multiple intelligences, combined with the stages and characteristics of children's cognitive development, and helps children develop their intelligence in language, mathematics, space, music, interpersonal communication and natural observation through interactive learning. Yanian APP provides a variety of learning modes and games, allowing children to learn knowledge and improve their skills in a relaxed and pleasant atmosphere. At the same time, Yanian APP also pays attention to cultivating children's independent thinking ability and creativity, and helps them explore and discover new areas in learning.