Abstract: Maize is widely planted because of its high temperature tolerance, drought resistance and complex environment tolerance.Maize has become an important basic means of production affecting China’s food security and industrial raw material supply. In order to further effectively explore the key techniques for high yield and high yield cultivation of maize in Northeast China, and fully improve the yield of maize in Northeast China, it is necessary to carry out targeted research on the key techniques for high yield and high yield cultivation of maize in Northeast China based on the special geographical environment and land cultivation characteristics,so as to provide technical support for promoting the high yield of maize in Northeast China.