Abstract:With the improvement of people's living standard，the degree of food refinement is increasing and the intake of dietary fiber is significantly reduced，which leads to diseases such as obesity，diabetes and hyperlipidemia.Therefore，the reasonable adjustment of diet structure and the increase of dietary fiber intake have been emphasized again.As the main source of dietary fiber，coarse cereals are gradually becoming the focus of academia.To provide references for the development of staple food conversion of grains in China，the domestic and foreign research status of staple food conversion of grains were reviewed，and the varieties，improved technology and quality changes of noodles and steamed grain bread products were summarized.