Isomalto oiligosaccharide includes isomaltose, isomaltotriose, panose, and isomaltotetraose. Because of its low sweetness, anti-crystallization, high temperature of boiling sugar, good moisturizing and suitable viscosity, it is widely used in sweets, beverages, cold drinks, pastries, dairy products, alcohol, and can also cooperate with other functional health products to develop related health food.