" Crossing South and Returning North " was about his experience of studying in Japan with his father Lu Xun in the 1920s and then returning to China to engage in literary creation. The novel used Lu Xun's personal experience as the main thread, interweaving the political, economic, and cultural situations of Chinese society at that time, showing the predicament and challenges of Chinese scholars at that time. I think Crossing the South and Returning to the North is a very thoughtful and touching novel. Through describing the experience of Lu Xun's father, Lu Xun, studying in Japan, Lu Xun revealed the two difficulties faced by Chinese scholars at that time: one was the closed education system, the other was the complexity of the social environment. Lu Xun believed that only by walking out of the closed road and understanding the outside world could he better contribute to China's progress and development. The novel also described the political situation of Chinese society at that time. During this period, Chinese society experienced two revolutions and a new policy, but overall, political corruption, social unrest, poverty and other problems still existed. The novel reflected the various ills of Chinese society at that time by describing Lu Xun's experience during his study in Japan. In addition, the novel also described the cultural situation of China at that time. During this period, Chinese traditional culture faced serious challenges and crises. Through describing Lu Xun's exchanges and cooperation with cultural figures during his study in Japan, the novel reveals the drawbacks of Chinese traditional culture and the areas that need to be improved. All in all, Crossing South and Returning North was a novel that deeply reflected the predicament and challenges of the Chinese intelligentsia at that time. Through describing Lu Xun's personal experience and the social, political and cultural situation of China at that time, the novel shows the reality and future of China at that time. It has a strong ideology and touching power.