There were Yuefu officials in Qin Dynasty, but there were no specific records in Historical Records, and no poems were handed down from generation to generation. Since the Western Han Dynasty, the records about Yuefu are more specific. There are two official positions of Yuefu in the Western Han Dynasty: one is Taiyue, which belongs to Changqing (that is, Taichangqing) and is in charge of Yayue, mainly from Zhou Dynasty; The other is Yuefu established by Emperor Wu of the Han Dynasty. Specializing in pop music, focusing on collecting folk songs from all over the country for emperors and nobles to enjoy. Emperor Wu of the Han Dynasty established Yuefu to collect folk songs, which was inherited by later generations and occupied an important position in the history of China's poetry. It has preserved and disseminated many excellent folk songs, brought fresh blood to ancient poetry, and promoted the prosperity and development of China's poetry. The Yueguan in the Eastern Han Dynasty inherited the Yueguan in the Western Han Dynasty, but renamed Tai Yue Ling as the Tomb of Dayu and Yuefu Mausoleum as Chenghua Mausoleum. Musicians who sang popular music in Han Dynasty were called Huangmen drummers. By the time of Cao Wei, due to the development of Qu, there was an additional department besides Qu, Xuanhe (equivalent to Yuefu in the Western Han Dynasty), and the Western Jin Dynasty followed its system. During the Six Dynasties, the official system was simplified. During the Eastern Jin, Song and Qi Dynasties, only the Music Department was set up, which was in charge of elegant music and popular music, and the Propaganda Department was added to the Liang and Tai Music Departments. In the Northern Wei Dynasty and the Northern Qi Dynasty, there were also two departments, Le Taihe advocated. In the Northern Zhou Dynasty, the ancient system was restored, and the official system was established according to the "Zhou Li", and officials such as Da Le and Xiao Le were established. In the Sui Dynasty, there were three departments: Taiyue, Advocacy and Youth. In the Tang Dynasty, Shangqing Department was omitted and incorporated into the Propaganda Department. The popular music in the Han, Wei and Six Dynasties was called Shang Qing Music or Qing Yue, and the lyrics were Xianghe Song and Shangqing Song, which contained many excellent folk songs or literati works. From Cao Wei to Sui Dynasty, the central court sometimes set up special Qing merchants' organizations, and sometimes Le Tai or the propaganda department was in charge of Qing merchants' music. In short, in this historical period, the music of merchants in the Qing Dynasty is very important. In the Tang Dynasty, the combination of emerging folk songs and western music produced a new kind of music-Le Yan. With Le Yan's lyrics, it gradually developed into short sentences (words). Smile, Shang Qing smile. Since then, China's music and music literature have entered a new historical stage.