“Huangzao 4” and its improved lines has been widely used because of its characteristics,such as high and stable combining ability,good plant shape,the tolerance to drought and poor fertility soil,ability to adapt to wide range of circumstance.Statistical analysis of 358 hybrids which were released in Jilin Province during 1980-2006 showed that 90 corn hybrids,29 improved lines were derived from “Huangzao 4” and its improved lines.Among these corn hybrids,"Jidan 180","Sidan 19","Jidan 209","Tongji 100","Zhengdan 958" and "Yinhe 101" were widely grown,which has made great contribution in grain production,the development of animal husbandry and the processing industry of Jilin Province.For the characteristic of the drought resistance,good quality,compact maize in “Huangzao 4” and its improved lines and corn hybrids,the prospects of its further application in maize breeding and production in Jilin province was discussed.Several issues on the utilization of “Huangzao 4” and its improved lines in our province which should be paid attention to were pointed out in the paper.