Vitamin A acetate is A fat-soluble vitamin and is referred to as Vitamin A nutritional supplement. Vitamin A is involved in a variety of physiological processes, and Vitamin A deficiency can lead to impaired rod cell function, anemia, decreased immune function, and poor growth. Therefore, Vitamin A fortified foods are widely used in many countries. Vitamin A acetate is A kind of unsaturated esters, oily, easy oxidation, soluble in fat or organic solvent, but insoluble in water, it is difficult to uniformly added in food J, application scope is limited, so after the micro capsule, it can improve the water solubility and stability of it, and form into powder by oil, easy handling and processing progress.