The difference between China and the world's top sci-fi was not in the number of Liu Cixin, but in the development and acceptance of sci-fi literature. Although Liu Cixin was one of the representatives of Chinese sci-fi literature, there were many other excellent sci-fi works in the world. At the same time, the development of science fiction literature was also limited by geographical, cultural, historical and other factors. Science fiction literature from different countries and regions had different styles and characteristics. Therefore, the gap between China and the world's top sci-fi could also be narrowed by understanding the sci-fi literature of other countries and regions. In short, the difference between China and the world's top sci-fi was the variety and development of sci-fi literature.