Digital reading increases the possibility of stimulating children's interest in reading and cultivating their autonomous reading ability. The progress of science and technology will certainly help children read more efficiently and build a broader reading world for them. The Secret of Growing up has a built-in science museum, a story museum and a junior high school future museum. This paper introduces a large number of original resources in traditional culture, humanities and arts, popular science exploration, self-awareness and interest cultivation. So as to improve children's reading ability of deep reading, extensive reading and systematic reading at different ages. In terms of reading methods, the "secret of growth" reader is a mobile digital reader specially provided for children, which provides interactive reading services such as animation, games, recording and interaction for children.