Abstract: Tang legend is an important source of materials of the Yuan plays, its framework before and after adaptation is roughly similar, but there are considerable differencesas well as distinctive color existing in value orientation and the theme. This paper researches the literary adaptation phenomenonby the text of Li Wa Zhuan and Qujiang Chi,through analyzing the character of the hero and heroine in works, furthermore, it analyzes the relationship among literati, prostitutes, marketplace and religious in the Tangand Yuan dynasty.