20,000 Miles Under the Sea was a science fiction novel written by France's Verne. It was also one of Verne's representative works. The novel was written in the first person about the adventures of a diver named Nemo on the seabed. The following are some of the writing characteristics of the novel: 1. Unique storyline: The novel takes Nemo's adventure at the bottom of the sea as the main line. Through telling his experiences, it shows the fear of the unknown and the passion for exploration. The whole story was full of thrills and excitement, but it also showed Verne's unique sci-fi style. The vast underwater world: The underwater world in the novel is full of mystery and wonder, including various creatures, underwater ruins and underwater cities. This way of depicting not only shows the infinite possibilities of the underwater world, but also provides readers with an imaginary world. 3. A detailed description of the plot: The novel gives detailed descriptions of Nemo's life at the bottom of the sea, including his diving equipment, food and water pollution. This way of description not only allowed the readers to have a deeper understanding of Nemo's life, but also enhanced the realism of the novel. 4. Science Fantasy: The novel is full of science fantasy, including descriptions of marine science, aviation technology, etc. This kind of fantasy not only made the novel more interesting, but also showed Verne's love and exploration spirit for modern science. 5. The vivid characters in the novel include the brave, clever, and quick-witted Nimo and his good friend, Aronnaz de Cerrado. These characters not only made the readers love and like them more, but also showed Verne's superb skill in portraying characters. Twenty Thousand Miles Under the Sea demonstrated Verne's superb writing skills and rich imagination through its unique storyline, vast underwater world, meticulous plot description, scientific fantasy, and vivid characters.