Web caption referred to the addition of non-fiction elements such as comics, animations, games, etc. to web novels to enhance the entertainment and appeal of the novel. Online caption was usually authorized by the author or created by himself, and then a dedicated caption team would do the caption and production. The types and content of web novels were very rich. They could include various types of novel elements such as fantasy, fantasy, science fiction, romance, urban, historical, military, and so on. The team could choose different elements and styles according to their own preferences and production goals to create online literature works that suited the readers 'tastes. Online literature could not only bring a new reading experience to novel readers, but also inject new elements and vitality into the online literature market.