The main characters in a novel were usually the key figures in the development of the plot, as well as the core of the novel's theme and emotional expression. Their existence not only added color and depth to the story, but also promoted the development of the story and expressed the author's feelings and thoughts through their unique characters, behaviors and dialogue. The role of the main characters in the novel could be divided into the following aspects: Driving the development of the story: The actions and decisions of the main characters can often drive the development of the story and lead the reader into different situations and endings of the story. 2. Demonstrate the theme of the novel: The characteristics of the main characters 'personalities, behaviors, and conversations are often closely related to the theme of the novel. Through their stories and words and deeds, the author can express the theme and emotions of the novel. 3. Shaping the novel characters: The main characters are also an important part of the novel characters. Their shaping can bring depth and complexity to the character setting, making the character more three-dimensional and plump. 4. Evoke the readers 'emotional resonance: The existence of the main characters and the story often trigger the readers' emotional resonance, allowing the readers to better understand and feel the emotions and theme of the novel. Therefore, the image of the main character in the novel was very important and an indispensable element in the creation of the novel.