" The Three-Body Problem " was a science fiction novel written by Liu Cixin and was considered one of the representative works of Chinese science fiction literature. This novel explored the progress of human civilization, the nature of the universe, and the fate of mankind by depicting the interaction and conflict between humans and alien civilizations. Here are some of my understandings of the Three-Body Problem: 1. The fragility of human civilization: The Three-Body Problem expressed the predicament of human survival in the face of unknown threats by depicting the fragility of human civilization. In the face of the invasion of alien civilizations, mankind could not effectively respond and eventually suffered huge losses. The Nature of the Universe: The Three Bodies explored the nature of the universe and the status of human beings in it. The universe in the novel is a complex system with many unknown threats and challenges. As a part of it, humans must face these challenges and try to adapt. The characteristics and values of the alien civilization: The alien civilization in the novel has unique characteristics and values. What they pursued was the progress and prosperity of civilization, not just survival. This was a huge difference from human values, so the interaction and conflict between humans and the trisomatics was also one of the important topics in the novel. 4. The relationship between science and technology and civilization: " The Three Bodies " expressed the impact of the development of science and technology on mankind by describing the relationship between science and technology and civilization. The technology in the novel was not only a tool to solve problems, but also a power to change the fate of mankind. " The Three-Body Problem " was a science fiction novel full of imagination and thought. It not only explored the interactions and conflicts between humans and alien civilizations, but also explored the relationship between technology and civilization, as well as the fate of mankind.