An autobiographical novel is a novel that uses personal experience as the main material. It is usually the protagonist's personal story, describing his/her growth experience, life experience, love story, and so on. The characteristics of autobiographies were as follows: 1. Truthfulness: The authenticity of an autobiographical novel is its most basic characteristic. The protagonist's experiences and feelings were usually authentic and trustworthy. The readers could feel the protagonist's growth process, emotional entanglements, and so on. 2. Personal Colors: An autobiographical novel would usually present the protagonist's personal colors, including personality, values, beliefs, and so on. This kind of personal touch would make the entire novel more realistic and vivid. 3. Description of emotions: autobiographies often involve the protagonist's emotional life, including love, marriage, family, friends, and so on. The emotional description was an important means to make the novel more touching and vivid. 4. Narration: An autobiographical novel usually uses a first-person narrative, in which the protagonist tells his story from his own perspective. This kind of narration could make the novel more real and intimate, and also increase the reader's sense of immersion. 5. Reflection and reflection: An autobiographical novel usually involves the protagonist's reflection and reflection on his own life, society, and the world. This kind of reflection and thinking could make the novel more profound and thoughtful.