It is said that Qi Bo, the originator of traditional Chinese medicine, discussed medicine in Qingyang thousands of years ago. It is recorded in Huangdi Neijing that he used medicine bags to prevent diseases and prevent snake venom, and created the "Dong steaming method". Since Qibo was born in Qingyang, it has gradually become a local custom and spread constantly, which is the origin of sachet.
Qingyang City is located in the easternmost part of Gansu Province, on the Loess Plateau in the middle and upper reaches of the Yellow River, where Shaanxi, Gansu and Ningxia meet. The local Qingyang sachet, also known as Chuchu, is a folk item in Qingyang. Qingyang sachet is a pure handicraft product compatible with three-dimensional modeling and flat embroidery. Its configuration is simple and simple. According to the production techniques, it can be divided into four categories: Chuchu, reel, three-dimensional embroidery and flat embroidery. "Chuchu", also known as "hidden needle embroidery", is characterized by hiding the needle and thread in a shape, shape and spirit without the needle and thread. The technological process includes creativity, material selection, cutting and materials, etc. In 2006, Qingyang sachet embroidery techniques were included in the first batch of national intangible cultural heritage list