Fortress Besieged was a modern Chinese story about the emotional entanglement between Fang Hongjian and two women. The following are the characteristics of the characters in the novel: Fang Hongjian: A smart and self-abased person has unrealistic fantasies about his own intelligence and ability, but at the same time, he is bound by traditional culture and social concepts. He longed for love and happiness but often missed opportunities because of his own imperfection. 2. Sun Roujia: A beautiful, intelligent, independent, and brave woman with a strong desire for knowledge and a sense of self-protection. She had clear goals and plans for her life and future, but she also had keen insight and deep understanding of others. 3. Mother Fang: A shrewd and capable woman with a feudal tradition had strict requirements and expectations for her son's marriage and love. At the same time, she had excessive worry and control over her son's happiness. 4. Qian Xuantong: A gentle, kind, and thoughtful person. He had deep feelings for Sun Roujia, but he also had his own stubbornness and prejudice. It was difficult to get rid of the shackles of traditional values. 5. Zhao Hsin-mei: A witty, humorous, and talented person who had a deep friendship with Fang Hong-chien and also had complicated feelings for Sun Rou-jia. He had the open-mindedness and freedom of modern people, but he was also bound by traditional values and social pressure. These characters all had distinct personalities and profound life experiences. Their contradictions and conflicts constituted the core of the novel.