Li Xiaonan's death in Sparrow is related to her identity. As a female agent in the Communist Party of China (CPC), Li Xiaonan naturally lives in darkness. But Su Sansheng is different, and Su Sansheng's identity is to deal with CCP aboveboard. So, when Li Xiaonan was betrayed, he was tried by Su Sansheng, and Su Sansheng, who had always regarded Li Xiaonan as his sustenance, lost the bet. He has to admit that he likes Li Xiaonan. The answer to how Li Xiaonan the sparrow died is self-evident. She was killed by Su Sansheng. According to the novel, Su Sansheng pushed a dry towel into Li Xiaonan's stomach at that time, and then pulled it out after the gastric acid in Li Xiaonan's stomach merged with the towel, and then suddenly pulled it out, so that you would get an unmelted love newspaper in your stomach.