The word "medicine" in Lu Xun's novel "Medicine" is a symbol with rich and profound meaning. " Medicine " represented medicine in Chinese culture. In traditional Chinese culture, Chinese medicine was regarded as a mysterious science that was connected to heaven and earth and could cure all kinds of diseases. In Medicine, the protagonist Hua Laoshuan sold fake medicine to the patient's family in an attempt to make money, but the patient's condition worsened and eventually died. This reflected the hypocrisy and utilitariousness of traditional Chinese medicine, as well as people's blind trust and dependence on medicine. Medicine also represented the good and evil and contradictions in human nature. In Medicine, the protagonists Fang Hongjian and Hua Laoshuan both had different expressions of human nature. Fang Hongjian was a kind man. He tried to save the patients by selling fake medicine, but in the end, he was driven by his own greed and selfishness, resulting in the death of many patients. Hua Laoshuan was an evil man. He did not hesitate to deceive and even murder patients in order to make money. He showed the good and evil and contradictions in human nature. In Medicine, the word "medicine" also symbolized the value and pursuit of life and health. In the process of selling fake medicine, the protagonist, Hua Laoshuan, constantly thought about the preciousness of life and health, hoping to save more patients by selling medicine. This shows the value and pursuit of life and health, as well as the difficulties and challenges people face in the process of pursuing health and happiness.