《三体》是刘慈欣创作的系列长篇科幻小说,分为《三体》《三体Ⅱ·黑暗森林》《三体Ⅲ·死神永生》三部。作品中,作者预设了一个残酷的宇宙规模的黑暗前提,讲述了地球文明与三体文明在宇宙中的兴衰历程。天体物理学家叶文洁因父亲被批斗致死,从小就对世界产生了一种仇恨心理。出于报复,她在参加军方探寻外星文明的绝密计划时,秘密朝宇宙中发射信息。四光年外,三体文明面临文明毁灭的灾难, “Three-body” is a series of long-length science fiction novels created by Liu Cixin. It is divided into three parts: “Three-body”, “Three-body II, Dark Forest,” “Three-body III, and Death and eternal life.” In the works, the author presupposes a brutal dark premise of the size of the universe, and tells the history of the rise and fall of the earth civilization and the three-body civilization in the universe. Ye Wenjie, an astrophysicist, was killed due to his father’s death. As a child, he had developed a kind of hatred toward the world. In retaliation, she was secretly sending information into the universe while participating in the military’s top secret plan to explore extraterrestrial civilization. Four light years away, the three-dimensional civilization is facing the catastrophe of the destruction of civilization.