Studying the narration structure, story contents and handwriting word shapes from Pò Mó biàn on Dunhuang manuscripts, we have researched the source of story and the age of writing and editing. Meanwhile, we have discovered the origin of Dunhuang buddhist narratives and the means of transmission which also show that the narrators usually revise spontaneously the contents according to the different audiences and places, even though they base on the same storytelling manuscripts. So we, therefore, found that a story may have two or more than two versions of telling manuscripts