Abstract: Maize not only has sufficient protein, vitamins, trace elements and dietary fiber, but also is the main raw material for light industry, chemical industry, medical and health care, animal husbandry and other industries. In order to provide more abundant maize, without increasing the cultivated area, the research and popularization of high-yield cultivation technology of maize has become the key. This paper discusses in detail the research, application and popularization of high-yield cultivation techniques of maize.