The sadism in a novel usually refers to a way of describing emotions. By describing the unfortunate encounters and painful experiences of the protagonist, the reader will have sympathy and compassion, and at the same time, it will also enhance the sadistic atmosphere of the novel. The plot of sadistic novels usually involved the protagonist's unfortunate experience of suffering from misfortune, suffering unfair treatment, losing important people or things, and these experiences often lasted for a long time, causing the protagonist to fall into pain and predicament. At the same time, the novel would also use some special techniques such as describing the protagonist's loneliness, helplessness, confusion, sadness and other emotions to strengthen the reader's emotional resonance and make the reader more sympathetic to the protagonist's fate. Sadistic novels were very popular in the novel world. Some of the sadistic novels might even attract a large number of readers 'attention and reading, but at the same time, they might also cause readers to have negative emotions and emotional damage. Therefore, when reading sadistic novels, one needed to maintain rationality and calmness and not be overly immersed in them.