With the development of economy and improvement of life, more and more attentions are focused on the environmental and healthy problems and healthy diet becomes a new consumption trend. Organic food, green food, functional food and healthy food have made a great contribution to the whole food industry and versatility has become the trend of the development of the food additives. The policy proposed in China is devoting on developing the kind of additive that is " natural, nutritive and multifunctional". Recently, the production of the functional food additive is increasing rapidly, making people realize the importance of it. Nowadays, functional food is known as the "5th wealth wave" of the 21st centry, which will become the mainstream of the development od the food industry.