Modified starch has a wide range of applications and can be seen frequently in our life, with applications and developments in paper, textile, food, construction and medicine. Starch is a very common ingredient in food products and modified starch plays an irreplaceable part in the food industry. Due to the variety and functions of modified starch, it is widely used in food products, mainly as food additives such as binders, emulsifiers, thickeners and stabilizers, which can not only reduce the ingredients of food production, but also improve the quality of food products, bringing considerable economic benefits to the food industry. In rice and flour products, modified starch can improve the taste of rehydration, chewiness and elasticity, and also prolong the storage time; in dairy products as a gelling agent to improve the gel performance; in baked goods as a thickener or stabilizer to improve the quality of food; in beverages as a stabilizer or encapsulant for some flavors and microcapsules; in confectionery not only to improve the gel of gummy candy, but also as a hard candy In frozen food, it can effectively improve the anti-freezing and thawing ability of food and ensure the quality and taste of food. There are countless similar applications, which shows the status of modified starch in food.