In 682 AD, during the Taihe period of the Tang Dynasty, the "cave tea" was regarded as a tribute by the court, and officials were sent to inspect the local customs. Its climate and landform are like mountains and sheep. There are many tea shops and buildings in the market, and Guanyin Cave is like a fairy. Therefore, this place was named after the words "sheep, building and cave", and the emperor declared that "ten thousand people make tea and prosper in the Tang Dynasty."

Chibi city Yang Lou Cave is located at the foot of Song Feng Mountain in Yang Lou Cave Town, southwest of chibi city. It was built in the Wanli period of the Ming Dynasty and has a history of more than 400 years. It was a famous tea market during the years of Qingganlong, Daoguang and Xianfeng. At present, there are two well-preserved ancient streets with a total length of 3000 meters and a width of 5 meters. The street is long and narrow, the bluestone is paved, and the houses with blue bricks and black tiles are simple and elegant.