In today's era, the network has gradually into people's lives. With the popularity of the network, people have gained a new way to acquire knowledge, and e-books were born as the times require. It gives readers a pleasant reading experience with convenient reading way and a wide variety of books. Compared with traditional books, e-books have many advantages. Firstly , the times are developing rapidly, traditional books can no longer satisfy the reading needs of people. Nowadays, people are busy with their work, so it is a nuisance to carry paper books with them. the convenience of e-books can better adapt to the lifestyle of people. Secondly, today the ecology of the earth is seriously damaged, there are a lot of trees cut down all over the world. Paper books need a lot of paper to print, but e-books do not need the supply of paper, which also contributes to the beauty of the world's ecological environment. Finally, it's always hard to buy the books you want to read, but e-books can help you instantly read what you want to know, and even locate the passages you want to read, which traditional books can't. However, the collection value of paper books is more than e-books. In addition, the good and bad of the e-books are all on the network , we should polish the eye when we are choosing them, distinguish its quality accurately ,so that we can read the high quality books.