Alpine camellia refers to the tea area that has been opened since 1980, that is, the hemispherical packaged tea (commonly known as oolong tea in the market) produced by the tea garden at an altitude of 1000. At present, the main producing areas are Xinyi Township, Ren 'ai Township, Fanlu Township and Zhuqi Township in Nantou, Taiwan Province Province, which are emerging tea areas with an altitude of 1000~ 1300 and a half. Mount Li, Cuifeng, Lushan, Yushan, Alishan and Shanshan Creek are also produced. Because the alpine climate is cold, it can be covered by clouds in the morning and evening, and the average sunshine time is short, which can reduce the bitter components such as catechins contained in tea and improve the substances beneficial to human body such as tea, amino acids and soluble nitrogen contained in tea. Moreover, the appearance of alpine camellia is spherical, curly and blue-brown, and the brewed tea soup is golden yellow. In addition, it also has the characteristics of fresh aroma, full charm, mellow taste and resistance to brewing, which makes alpine camellia quite popular with everyone.