本文主要对1999～2005年7年间,国家黄淮海夏玉米区和河北省夏玉米区审定玉米新品发展趋势进行了总结。通过总结,作者分析了在黄淮海区域各省育种单位当前差距及河北省夏玉米新品种特点,为对欲在该区域有所建树的育种工作者提供参考,为欲在该区域参与种子市场竞争的种子企业在选择玉米新品种时提供借鉴。 This paper mainly summarizes the development trend of new corn approved in the Huanghuaihai summer maize region and summer maize region in Hebei Province from 1999 to 2005. Through summarizing, the author analyzed the current gap in the breeding units in the provinces of Huang-Huai-Hai region and the characteristics of new summer maize varieties in Hebei Province. It provides a reference for the breeding workers who want to make contributions in this area. In order to participate in the competition of the seed market in this region, Seed companies in the selection of new varieties of corn to provide reference.