Tieguanyin tea, a traditional famous tea in China, belongs to the category of green tea and is one of the top ten famous teas in China. Originally from Xiping Town, Anxi County, Quanzhou City, Fujian Province, it was found in 1723- 1735. Tieguanyin is not only the name of tea, but also the variety name of tea tree. Tieguanyin tea is between green tea and black tea and belongs to semi-fermented tea. Tieguanyin has a unique "Guanyin rhyme", which is fragrant and elegant. After brewing, it has a natural orchid fragrance, pure taste and lasting fragrance, and has the reputation of "seven bubbles are more fragrant". In addition to the general health care function of tea, it also has the functions of anti-aging, anti-arteriosclerosis, prevention and treatment of diabetes, weight loss and bodybuilding, prevention and treatment of dental caries, clearing away heat and reducing fire, quitting smoking and sobering up.

Tieguanyin is rich in amino acids, vitamins, minerals, tea polyphenols and alkaloids. It has a variety of nutritional and medicinal components and has health care functions. In the eighth year of the Republic of China, it was introduced from Anxi, Fujian, and it was divided into two types: "Tieguanyin with red heart" and "Tieguanyin with green heart". In Wenshan period, the main producing areas were horizontal, with thick branches and loose leaves, few buds and thick leaves, and low yield, but the quality of packaged tea was high, and the production period was later than Qingxin Wulong. Its tree shape is short, its leaves are oval and its leaves are thick and fleshy. The leaves are flattened.