Compared with European and American literature,the oriental literature as a whole is ineloquent in eco-literature.

For quite a long period,European and American literature has been making an issue around the concept of nature.

From the intermediary space of the new ecological perspective, expand the connotation of the concept of intermediary space, and will focus on the ecology of intermediary space is divided into"Functional, Subsidiary, Of artistry "three types, corresponding At the same time, "penthouse entrance, floating space, breathing skin"and many intermediary space ecological writing techniques.

The writing techniques of stream of consciousness and intertextuality in the modern American classic Katherine Anne Porter’s short story The Jilting of Granny Weatherall can not only help describe the character more vividly and truly,but also deepen the motif of the novel.

The main artistic achievements of the novel The Dream of Red Mansion lies in the employment of the writing technique of realism.

Based on analysis of the reason why Bai Xi Fu was very popular in Tang Dynasty, and discussion on its significance in historical material preservation and theme expansion as well as writing technique, the paper concludes that Tang Dynasty s Bai Xi Fu is of great significance and value in the Fu history.