The main production areas of white tea are Fuding, Zhenghe, Zherong [1], Xinzhou Old Street [2], Wuhan, Tianshan, Songxi, Jianyang, Jinggu, Yunnan, etc. The basic processes include withering, baking (or drying in shade), picking, re firing, etc. Yunnan white tea is mainly made by sun tanning, and the advantage of sun tanning tea is to maintain the original fragrance of tea. Withering is the key process to form the quality of white tea.