Liu Cixin's " The Three-Body Problem " was one of the representative works of Chinese science fiction and one of the most popular science fiction novels in the world. However, there was still a gap between it and the world's top sci-fi works. First of all, the story setting and worldview of " Three-Body Problem " were relatively simple and lacked a global perspective. The world's top sci-fi works usually had a broader vision to explore more mysteries and unknown areas of the universe. For example, the cosmic civilization depicted in " The Three-Body Problem " only existed in one galaxy in China, and the civilizations and technologies of other galaxies far surpassed them. Secondly, the character description and plot development in " The Three-Body Problem " lacked depth and complexity. The world's top sci-fi works usually created characters with depth and complexity and explored complex human and emotional issues. For example, the relationship between the Three-Body Man civilization and human civilization in " The Three-Body Man " and the response strategies of human beings in the face of the invasion of alien civilizations lacked depth and complexity. Finally, although the language of " Three-Body Problem " was concise and clear, it lacked beauty and artistry. The world's top sci-fi works usually had superb language expression skills and artistic expression techniques that could give readers a strong emotional resonance and aesthetic enjoyment. For example," The Three-Body Problem " used a lot of metaphor and metaphor, as well as a unique narrative and structure, which were highly artistic. Although " The Three-Body Problem " was one of the representative works of Chinese science fiction, there were still some gaps between it and the world's top science fiction works that needed further improvement and perfection.