Lu Xun's History of Chinese Fictions is an important work on novel theory and criticism. 1. System: Lu Xun's "History of Chinese Fictions" systematically analyzed the development process and characteristics of Chinese novels from ancient times to modern times, covering the historical background and development process of Chinese novels. 2. Pay attention to tradition: Lu Xun believed that the deep tradition of Chinese novels was the cornerstone of Chinese literature. He emphasized the important roles of the traditional novel's narrative style, description skills and story plot, and believed that there were essential differences between the traditional novel and the modern novel. 3. Pay attention to reality: Lu Xun's "History of Chinese Fictions" not only pays attention to the historical development of Chinese novels, but also pays attention to the realistic performance and character images of Chinese novels. He analyzed the characters and plots of Chinese novels, which reflected the reality of society and the living conditions of the people at that time. 4. Respect for innovation: Lu Xun believed that Chinese novels needed constant innovation in order to express social reality in the context of the times. He emphasized the creativity and expressiveness of modern novels. Lu Xun's "History of Chinese Fictions" had the distinctive characteristics of historical realism and systematically analyzed the development process and characteristics of Chinese novels, which played an important role in promoting the development of Chinese novels.