Stevioside as a new natural sweet agent, been widely used in foods, drinks, medicines and daily chemicals, Broadly speaking, in all the sugar products, the stevioside can be used to take the place of cane sugar or gluside, Presently, stevioside is mainly used in drinks and medicine, especially in beverage, It is also used in the frozen food, canned rood, candied fruits, spices, wine, chewing gum and toothpaste