On the order of Emperor Gaozong of the Tang Dynasty, Xu Jingzong of the Secretariat compiled Wenguan Cilin as a classified anthology of prose and poems from the Pre-Qin Period to the Tang Dynasty. Much of the anthology was lost during the early phase of the Song Dynasty. Japan's Chinese Ancient Literature Seminar gathered all of the remnant volumes and compiled thirty volumes of Wenguan Cilin in a printed Japanese Hongren edition, which consists of a large amount of important texts from the Pre-Tang Period including forty-nine extant passages from the Northern Dynasties in Cilin, which are of great documentary and historical value. Cilin complements Yan Kejun's Complete Texts from Xia, Shang, Zhou, Qin and Han Dynasties, Three Kingdoms Period and Six Dynasties. Nine passages are collected in The Complete Texts from Hou Wei, twenty-one passages are collected in The Complete Texts from Bei Qi and five passages are collected in The Complete Texts from Hou Zhou. Cilin supplements fragmentary passages in Yan's work, enhances its proportion of integrated texts and therefore elevates its literary and historic values. Emendation between Cilin and Yan's work can be helpful for correcting different characters in passages as well as looking into the problems on transitions in the texts. Specifically,the Japanese Hongren Edition recollects passages from important scholars of the Northern Dynasties like Gao Yun, Wei Shou, Wen Zisheng and Liu Di, whose contents involve documents about many Northern Dynasties historical turning points. Since the Northern Dynasties passages are rarely preserved and researches on Northern Dynasties literature and scholars are insufficient, the passages preserved in Cilin have a great literary and historic value. For example, Ode to the Southern Tour written by Gao Yun in the Bei Wei Dynasty is a complement to the odes in the early phase of Bei Wei and it's also an important text for researches into the literary level and transitions in Bei Wei. On the other hand, being a literary record of Emperor Gaozong of Bei Wei's Southern Tour, it contains a historical value. Also, The Imperial Edict of Amnesty after Emperor Xiaowen of Bei Wei's Capital Moving is a valuable document on the moving of the capital, which is an important political and cultural event. Eleven passages by Bei Qi's renowned scholar Wei Shou largely expand the amount of his works, among which Epitaph of Yan Zhou's Governor Hu Yan and Epitaph of Zheng Nan General He An are extremely valuable. These two epitaphs provide high quality texts on the relationships between politics and scholars since both epitaphs are written for people from the favored families in Bei Qi.