Dewey is a famous American educator, philosopher and psychologist in the 20th century. This paper criticizes the traditional school education and puts forward a series of educational ideas and viewpoints. "School is society and education is life" is one of his important viewpoints. Dewey believes that the school should be the epitome of society, providing a learning environment and experience similar to the real society, so that students can get an education closely related to life at school. It is advocated that education should be close to students' life experience and actual needs, and cultivate students' practical ability and social adaptability. This view emphasizes the close relationship between education and life, and emphasizes that school education should be combined with society and life to provide students with more meaningful and practical education.