β-carotene is an edible oil-soluble pigment.Due to the concentration differences, color could cover all the color from red to yellow.In the food industry it has a wide range of applications.It is very suitable for oily products and the development of protein products,such as: margarine,capsules,fish paste refined products,vegetarian products, instant noodles and other color.After dealing with the micro-capsules,β-carotene can be transformed into water-soluble pigment,almost can be applied in all food .In addition,β-carotene have an important purpose in the feed,cosmetics etc.