In recent years, online novels have become a very popular branch of literature. It has attracted a large number of readers in a fast, flexible and diverse way. However, there were still many factors that needed to be considered before it could become mainstream literature. The number of online novels is already very large, and as time goes by, more and more readers start to read online novels, making it an important part of the literary field. However, in order to make online novels mainstream literature, the following aspects needed to be considered: 1. The return of traditional literature: Although online novels have become an important branch of literature in the past few decades, people's aesthetic concepts and reading habits are constantly changing with the changes of the times. Therefore, if traditional literature could regain people's favor, online novels might also be affected and become mainstream literature. 2. Requirements for literary quality: In order to become a mainstream literary web novel, it also needs to achieve a certain literary quality. This required the author to have a certain literary quality and creative ability to create works with depth, breadth, and warmth. The influence of social and cultural environment: Whether online novels can become mainstream literature still needs to consider the influence of social and cultural environment. If the cultural atmosphere of society was more open and the quality of literary works was higher, then online novels might gradually replace traditional literature and become mainstream literature. Although online novels had an important position in the field of literature, there were still many factors to consider in order to become mainstream literature. If online novels could continuously meet the needs of readers, continuously improve the quality of literature, and be widely recognized and accepted in the social and cultural environment, it might gradually replace traditional literature and become mainstream literature.