Phyllanthus emblica is commonly known as “You-gan”in Taiwan. Traditionally, it is eaten in the form of fresh fruit or candied fruit. In recent years, scientific research has focused on the regulation and application of various health effects such as regulating blood sugar, regulating blood lipids, protecting liver and anti-fatigue. Emblica Miaoli 2 has high content of total polyphenols, total flavonoids and functional ingredients β-glucogallin. It is suitable as a raw material for health care products. It has been evaluated by rats to regulate blood sugar potential. And HPLC fingerprint analysis has been established for used as a quality control index.