Dream of the Red Chamber was a classical Chinese novel. Its theme was complex and diverse. Different people might have different interpretation and understanding. But generally speaking, the main theme of Dream of the Red Chamber was " human nature "," emotions ", and " fate ". In the novel, Jia Baoyu, Lin Daiyu, Xue Baochai and other characters were endowed with different emotions and human nature, and the relationship between them was also complicated and subtle. At the same time, the novel also reflected various social problems at that time, such as the gap between the rich and the poor, class opposition, official corruption and so on. Together, these elements formed the main theme of 'Dream of the Red Chamber', allowing readers to feel the complexity and variety of human nature, as well as the impermanence and unpredictability of fate. The main theme of Dream of the Red Chamber was not only about human nature, but also about the expression of emotions and thinking about life. It had a profound philosophical significance.