A Dream of Red Mansions is one of the four classical novels in ancient China, and it is a chapter-by-chapter novel. It was written in 1784 (forty-nine years of Qing Qianlong), and its preface was officially named A Dream of Red Mansions. Its original names were Stone Story, Love Monk Record, Treasure Mirror and Twelve Women in Jinling. The first 80 chapters were written by Cao Xueqin, and the last 40 chapters were continued by Anonymous, with Cheng Weiyuan and Gao E ending. This book is a masterpiece with high ideological and artistic quality. The author has a preliminary democratic thought. He profoundly criticized the darkness of real society, court and officialdom, the decay of feudal nobles and their families, feudal imperial examinations, marriage, handmaiden, hierarchy and social ruling thoughts, and put forward vague ideals and ideas with preliminary democratic nature. Author: The first 80 chapters were written by Cao Xueqin, and the last 40 chapters were continued by Anonymous. Cheng Weiyuan and Gao E arranged them.