"Gesar" is a great heroic epic created collectively by the Tibetan people. It has a long history, a magnificent structure, voluminous volumes, rich content, majestic momentum, and is widely circulated. "Gesar" provides us with valuable forms of primitive society and rich information, and represents the highest achievement of ancient Tibetan culture. From its generation, basic finalization to continuous evolution, the epic contains all the original core of Tibetan culture. It has high academic value, aesthetic value and appreciation value. It is an encyclopedia for the study of ancient Tibetan society and is known as the "Oriental" Homer'. "The Biography of King Gesar" is the only living epic in the world. There are still hundreds of folk artists singing about the great achievements of the hero King Gesar in Tibet, Sichuan, Inner Mongolia, Qinghai and other regions of China. Judging from the current collection and arrangement, "The Biography of King Gesar" contains more than 120 volumes, more than 1 million lines of poetry, and more than 20 million words, making it the longest epic in the world. In terms of quantity, it is better than the five most famous epics in the world, namely: the ancient Babylonian epic "Gilgamesh", the Greek epic "Iliad" and "The Odyssey", the Indian epic "Ramayana", The sum total of Mahabharata is even more. More than 50 Tibetan versions have been discovered so far. In the oral rap of "The Biography of King Gesar", artists were added or removed at any time, and the content was not very fixed. Some people recorded and compiled them into books, passed them on and copied them, and even carved them into woodblock prints. As a result, many famous articles gradually formed fixed or semi-fixed written literature. However, these publications were written by many people and formed into different versions, which were then processed by artists from time to time during the singing process. The content became richer and the plots became more vivid.