National musical instrument making skills (Jinghu making skills), traditional skills. Jinghu, also known as Huqin. It is a traditional Chinese stringed instrument. At the end of the 18th century, with the formation of the traditional Chinese opera Peking Opera, it was modified on the basis of the stringed instrument Huqin. It has a history of more than 200 years and is the main accompaniment instrument of the traditional Chinese opera Peking Opera. In the early days, Jinghu had only one specification. After long-term practice by luthiers and performers, it developed into multiple specifications according to the different tunes of Peking Opera, and created several special Jinghu such as Xipi, Erhuang, Wawadiao and Plectrum. The size of the low-key Jinghu was enlarged to meet the needs of the development of Peking Opera music.