The cereal grain serves as a primary carbohydrate component in the diets of humans,and there is a close correlation between the starch in the endospermas and the cereal quality.This review puts the current state of knowledge about the application and biosynthetic of the starch in cereal grain,the functions and characters of starch synthases,the relationship between starch properties and starch quality,and the genetic improvement on starch properties.We also discussed further studies for cereal starch,hopefully stimulate subsequent research and understand on cereal starch.