The main reasons why online literature could not become mainstream were as follows: 1. Limited audience: Online literature is usually published on a network platform with a relatively limited audience. Most of the readers of online literature were young people, and their favorite genre and subject matter were relatively simple, which was difficult to meet the needs of the public. In contrast, traditional literature had a wider audience and could attract readers of different ages and cultural backgrounds. 2. Lower threshold for creation: The threshold for creating online literature is relatively low. It does not require a deep literary foundation and creative experience like traditional literature. This allowed some people who lacked writing experience or literary attainments to participate in the creation of online literature, but it also easily led to the uneven quality of online literature, making it difficult to reach the level of traditional literature. 3. The lack of regulation and supervision: The lack of effective supervision and regulation in the online literature market has led to the emergence of some inappropriate content. In addition, the publishing and circulation process of online literature was relatively simple and easy to breed corruption and bad phenomena. 4. The business model is not mature enough: The business model of online literature is not mature enough to obtain sufficient financial support. The business model of traditional literature was usually publishing, distribution, and performance. The business model of online literature was relatively simple and difficult to achieve commercial operation. For all these reasons, online literature could not become mainstream literature. Although online literature has its unique advantages in creation and communication, with the continuous development and progress of traditional literature, the status of online literature is gradually declining.