Tianlong Ba Bu was a fictional literary concept, not a real book or word. This concept first appeared in web novels and was widely used. Among them, the " Eight Dragons " first appeared in Mr. Jin Yong's martial arts novel," Book and Sword Gratitude and Revenge." At that time, it was defined as " all-encompassing in all directions." Later, this concept was widely used in martial arts novels, fantasy novels, immortal cultivation novels, and other online novels, and became a general term for these novels.