In the field of Chinese folk literature, legends and folk tales are two different concepts. Legends are stories about the gods and goddesses, or about the deified heroes and heroines. They are innocent accounts and beautiful fantasies in the primitive societies about natural phenomena and social lives. But the folk tales are the stories in relation to historical personnel, historical events and ancient relics, which are created by the laboring people and spread orally from generation to generation. They are an illusory account of the history.