The Warring States Policy is a work of national history. When the Western Han Dynasty proclaimed himself emperor, Liu Xiang compiled 33 articles in the order of Eastern Zhou, Western Zhou, Qin, Qi, Chu, Zhao, Wei, Han, Yan, Song, Wei and Zhongshan 12, and the title was also drawn up by Liu Xiang, named Warring States Policy. Mainly describes. It is an important ancient book to study the history of the Warring States. It was lost in the Song Dynasty and supplemented by Ceng Gong. There was a high lure note in the Eastern Han Dynasty, which is now incomplete. Song Baobiao changed the order of the original book and made new notes. Wu Yuanxue was a teacher, and there was a supplementary note in modern Jin Dynasty, and Miao has a new note on the Warring States policy today.