The three great demon books in ancient China were Water Margins, Journey to the West, and Dream of the Red Chamber. Water Margins was a novel about 108 rebels who rebelled against the imperial court. It was considered a classic in the history of Chinese literature. It vividly depicted the lives, thoughts, and struggles of the righteous thieves, showing the complexity of human nature and the injustice of society. Journey to the West was a story about the immortals and mortals. It depicted the absurdity and adventure of the immortal world with rich imagination and wonderful descriptions, and also showed the good and evil of human nature and moral cultivation. 'Dream of the Red Chamber' was a love story about Jia Baoyu, Lin Daiyu, and others. It was considered the pinnacle of Chinese fiction. It presents the style of traditional Chinese family and society with delicate descriptions and emotional twists and turns, and also reveals the complexity and contradiction of human nature. These three novels all had high literary value and influence. They were widely praised and read as classics in the history of Chinese literature.