Arabic gum is derived from exudates collected from the trunk of Acacia. It has been used for 4000 years. Because it is safe and non-toxic, the dosage is not specified. It is yellow to light yellowish brown translucent block, or white to light yellow particles and powder. The lighter the color, the better the quality. The fresh appearance is smooth, the interior is transparent, odorless and tasteless. It is easily soluble in water, and can be dissolved in hot water and cold water to form a clear and sticky thick liquid. Its application in food depends on its protection and stabilization of colloid, its stickiness and thickening, and its low digestibility in food formula with low calorific value. It can prevent the recrystallization and thickening of candy when used in candy making. In the candy, the fat can be evenly distributed in the whole body to prevent the formation of oxidized multi lipid surface layer. In dairy products, a large amount of water can be combined and maintained in the form of hydration. The bread surface can be filled with a sense of smoothness in the center of bread. Transparent brightener, sugar coating and snacks can be made to make the sugar coating stable and have the characteristics of free flow and adhesion to the bread surface. It can also be used as fragrance stabilizer, beverage emulsifier and beer foam stabilizer.