Abstract: Du Shi Zheng Xuan and Han Shi Zheng Xuan written by Li Xiang prove the close relationship between Du Fu and Han Yu and Wen Xuan based on concrete items，but there is flaw and there are rooms for perfection and reinforcement.After a detailed investigation，we can see similarities in both poets′ works，in which are abundant words and expressions from Wen Xuan.The fact that Du Fu required his son to be adept at Wen Xuan also proved its connection with the imperial examination.This close relationship embodied the effectiveness of Wen Xuan for the imperial examination.

Key words: Li Xiang, Du Shi Zheng Xuan, Han Shi Zheng Xuan, Du Fu, Han Yu, Wen Xuan, item complement, imperial examination