Many previous researches were revealed that the qinying rites in Xinji jixiong shuyi and S.1725 Shuyi were different from marriage ceremonies of Tang Wu Dai. However, this paper cites Datang Kaiyuan li, Shuyi and Jiali to show marriage rites in Dunhuang Shuyi and marriage ceremonies of Tang Wu Dai are almost the same, which all have three stages: being in bridegroom’s house, going to bride’s house and coming back to bridegroom’s house. This paper reviews the applications of poems depicted in Dunhuang Manuscripts: (1) two chapters of Zhangche Ci should be used while going to bride’s house; (2) a poem named Lun Nuxu should be used when just arriving bride’s house, which belongs to one part of Xiaxu; (3) poems named Yong Tonglaopan Shi, Qushan Shi and Quhua Shi are used while coming back to bridegroom’s house. Restricted to insufficient materials, the application of Zhouyuan Wen is interpreted that it could be used while Sazhang and greeting guests. P.3909, S.6207 of Lun Zhouyuan Xinlang Wen should be Zhouyuan of Sazhang. The five transcripts of Zhouyuan Xinlang, S.5546, P.3608, Dx01455, S.8336, S.2049V, and the three transcripts of Zhouyuan Xinfu, S.5546, S.8336, S.2049V, are Zhouyuan for greeting guests.