The name of Yuefu's "Blowing the Drum Horn". Yuefu folk songs in the Northern Dynasties. Also known as Mulan Ci. After the Northern Wei Dynasty moved its capital to Luoyang, it was polished by literati in Sui and Tang Dynasties. It was originally recorded by monk Chen, a wise craftsman in the Southern Dynasties, in the Book of Ancient and Modern Music, with a length of more than 300 words. It is an excellent narrative poem in China ancient folk literature. It is the story of Mulan Qiao, the heroine, who disguised herself as a man and joined the army for her father, and finally returned to her hometown. In art, it broke through the narrow space of miscellaneous songs in Han Dynasty, and formed its own long and huge style, which played an exemplary role in the development of seven-character songs in Tang Dynasty. The layout is rigorous, the complexity is proper, the description is vivid, the language is rich, and the romanticism is strong, which has a great influence on later literature.