Gum arabic is also called gum arabic, acacia gum, acrylic gum, Senegal gum and peach gum. It comes from the exudate collected from the Arab tree 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 powders. The lighter the color is, the better the quality is. The fresh appearance is smooth, and the interior is transparent, odorless, tasteless. It is very soluble in water, and can be dissolved in large amounts in hot water and cold water to form a clear and sticky thick liquid. Its application in food depends on its role in protecting and stabilizing colloids. Chemicalbook's stickiness and thickening, its own low digestibility in low calorific value food formula, and its role in preventing candy from recrystallization and thickening when used in candy production. In the candy, the fat can also be evenly distributed in the whole body to prevent the formation of a multi lipid surface layer that is easy to oxidize. In milk products, a large amount of water can be combined and kept in the form of hydration. In the bread pastry, the bread surface can be filled with a smooth feeling, and transparent brighteners, sugar coating and snacks can be made, which can make the sugar coating stable and have the characteristics of free flow and adhesion to the bread surface. It can also be used as flavor retention agent, beverage emulsifier and foam stabilizer of beer.