Yan music in the Tang Dynasty is another peak in the history of the development of music in my country. It is mainly folk music from the Central Plains, and integrates Qing business music and music from the Western Regions, forming the main body of music in the Tang Dynasty. During the reign of Emperor Taizong of the Tang Dynasty, there were ten departments of Yanle. Namely: Yanle, Qingshangle, Xiliangle, Tianzhule, Gaolile, Qiucile, Anguole, Shulele, Gaochangle, Kangguole. These ten pieces of music are representative of the court Yan music of the Tang Dynasty. Among them, except for the Qing Shang music and dance music of the Central Plains formed during the Han and Wei dynasties, the new music and dance Yan music created by the Tang people, and the two foreign music and dances of Koryo music and Tianzhu music, the remaining six are all It is music and dance from Qiuci and other countries in the Western Region. This shows the proportion of music and dance from the Western Regions in the ten types of music in the Tang Dynasty. In addition, during the Han and Tang Dynasties, a large number of musicians and dancers from the Western Regions were active in the courts, religious workshops, troupes and folk in the Central Plains, and a large number of music scores and dances were also introduced. In terms of music theory, there are Su Zhipo, Bai Mingda, and Bai Zhitong from Qiuci Kingdom; musical instrument players include: pipa players and reformers Pei Shenfu and Pei Xingnu from Sule Kingdom, and master Yuzhen from Yulan Kingdom: Yu Chiqing, Sheng player Yuchi Zhang, Kang Guo pipa master: Kang Kunlun, known as the "first player in the palace", Mi Jiarong, the American singer, and the Cao family of Cao State were all pipa families for three generations. Later Wei Dynasty By the Northern Qi Dynasty, Cao Brahman, Cao Sengnu, Cao Miaoda, and in the Tang Dynasty, Cao Bao, Cao Shancai, Cao Gang, etc. were all famous in the Central Plains music scene at that time. It can be seen from the Tang Dynasty court music and dance "Zi Bu Ji" and "Li Bu Ji" that except for Yan Le, An Le and Taiping Le all used Qiuci music. From this we can see that the Tang people had a preference for music and dance from the Western Regions. "Creating new ideas in the law and expressing wonderful principles in boldness" represents the entire cultural style of the Tang Dynasty. In the court music and dance of the Tang Dynasty, it was required that the music should have new music, the songs should have new sounds, and the dances should have new postures.