Side descriptions and positive descriptions were commonly used in novel writing. The side story was to highlight the image and character of the protagonist by describing other characters, environments, and plots, so that the readers could have a deeper understanding of the protagonist's inner world and behavior motives. For example, in the novel Dream of the Red Chamber, Jia Baoyu's character and fate were described through the reactions and attitudes of the characters such as Lady Jia and Lady Wang. Positive descriptions described the image and personality of the protagonist so that the readers could understand the protagonist's behavior and performance more directly. For example, in the novel Water Margins, Lin Chong's character and image were expressed through his actions, speech, and demeanor. The use of side descriptions and positive descriptions in the novel had different effects. It needed to be used flexibly according to the plot and the characteristics of the characters. At the same time, the description technique also needed to combine the situation and plot so that the readers could better understand and feel the emotions and artistic conception in the novel.