The famous cigarette in Dream of the Red Chamber is an important character in the novel. He has a distinct character image and profound ideology, which plays an important role in the novel. First of all, Mingyan being the servant girl of the Jia family was one of the important plot clues in the novel. Through the relationship between famous cigarettes and other maids and young ladies, the novel shows the lives and fates of the young ladies of the Jia family, and also shows the personality characteristics and psychological states of different characters. Secondly, as Lin Daiyu's personal maid, Ming Yan had a deep emotional relationship with Lin Daiyu. Through the description of famous cigarettes, the novel shows the loneliness, helplessness and desire in Lin Daiyu's heart, and also reveals the life and fate of the Jia family. Finally, Famous Cigarette, as a ideologist in the novel, had a strong personality and independence. Through the description of Famous Cigarette's thoughts and words and deeds, the novel expressed the author's criticism of feudal ethics and morality, and also reflected the author's exploration of human nature and freedom. Therefore, as an important character in Dream of the Red Chamber, famous cigarettes played a role in connecting different characters, expressing the character's personality and revealing the theme of the novel.