Lu Xun's Madman's Diary was a novel that reflected the enlightenment and revolutionary struggle at the end of China's feudal society. It was also a classic work of modern Chinese literature. Through the perspective of a "madman", the novel reveals the corruption and darkness of the feudal society, as well as the anger and desire for change in the hearts of the people. The protagonist of the novel, Madman, was a radical intellectual. In his diary, he recorded his dissatisfaction with the feudal system and his sympathy for the sufferings of the people. In the novel, Madman revealed the contradictions and confusion in his heart through his description of himself and his observation of the people around him, reflecting the Chinese people's resistance to the feudal system and their revolutionary will. A Madman's Diary was hailed as a classic of modern Chinese literature with its unique narrative style and profound ideology. It also had a profound impact on modern Chinese thought and culture.