Facing the severe challe nge of production demands and variety breeding on kernel mechanized harvesting maize,this article,on the subject of inbred selection and testing,briefly summarized the achievements,methods,current situations of maize breeding in recent decades.Explored the selection of some crucial characteristics,such as plant type,kernel dehydration,and resistance,of maize in terms of plant breeding materials crossing,population size as well as selection methods.Proposed a feasible breeding strate...