Yuan Zhen and Bai Juyi's poetry responsory has been concemed by many scholars attention for a long time,and the scholars had already definite conclusion about the creative achievement of their poetry and influence. However, No sufficient attention has not been paid to Yuan and Bai' s prose writing, and their literature position at that time is not yet fully confirmed .Actually, Yuan and Bai were involved in a series of reformations for the article abuse since Qi and Liang dynasty, and even dared to break the conventional four- six prose writing mode when they writed the official patent documents, reflecting a positive positive stylistic innovation spirit. They are also the sponsor of the mid- Tang ancient-style prose movement ( 古文運폐 ) .They dependon their special identity extended the prose influence, it play a important role for the an cient prose revival movements ponsored by Han Yuand Liu Zongyuan.