The 21st century is a period of rapid development of Korean original science fiction, and Korean science fiction is about to enter a golden age. Although science fiction has a century-old history in South Korea, original science fiction in South Korea did not receive public attention until the 1990s. After the 1900s, with the rapid development of network communication technology, science fiction began to slowly enter the attention of readers. After the 2lXXls, science fiction took off the labels of popular science books and children's literature, and attracted the attention of the literary world with a new look. The team of science fiction writers in South Korea has grown continuously, and the quantity and quality of science fiction works have achieved rapid development Combining science fiction and post-human imagination in this period, it no longer only focuses on the impact of technology on human life, but explores the relationship between human beings and others, human beings and technology, and human beings and the future. Through post-human imagination breaking anthropocentrism and exploring the possibility of coexistence between humans and others has become a literary genre with Korean characteristics. Therefore, this thesis focuses on Korean science fiction from the 2000s onwards, analyzes the ethical issues that novels pose to humans, and examines how Korean science fiction reframes the relationship between humans and inhumans and the post-human imagination that emerges in science fiction.