A series of germplasm of maize were introduced from abroad to Jilin Province in the early 1960 s, such asthe inbred lines of‘M14’,‘W20’, and‘W24’. A lot of new germplasm of maize were introduced from other breed-ing units from the 1970 s to the 1990 s, such as the inbred lines of‘B73’,‘Mo17’,‘Dan340’,‘Tie7922’,‘C8605’,‘He344’,‘M67’,‘U8112’and‘Ye478’. Introducing germplasm from other breeding units home andabroad is very important to solve the deficient of maize germplasm. In this paper, a summary was given to the utiliza-tion and innovation of‘M14’,‘Mo17’,‘U8112’and‘Ye478’.