The epic novel that Hugo called society was Notre-Dame de Paris. The novel depicted the 15th century Paris society and the various tragedies and crimes that occurred in it, including the clock tower monster, the promiscuity and theft in the church, the Romani girl, the lover of the clock tower monster and their children, and so on. This novel profoundly revealed the good and evil of human nature and the complexity of human contradictions and conflicts. Therefore, it is considered a social epic, which is of great significance to the understanding of French society and culture in the 15th century.