Abstract: A new maize hybrid Badan998 was obtained by using Baxi0458 （female） and Bayin05-443 （ male）.Its yield was 916.9 kg/667m2 in the preliminary test, 11.2% higher than the control variety; testing results showed its yield was 910.7 kg/667m2 in the regional test, 9.63% higher than that of the control variety; testing results showed its yield was780.8 kg/667m2 in the production test, 8.8% higher than that of the control variety Zhengdan958.Badan998 was examined and approver by he Inner Mongolia Autonomous Region Crop Variety Approval Committee in May of 2012. Badan998 is of high yield and quality, great resistance to diseases, better density-tolerant property and extensive adaptability. It can he planted in late mature region of Inner Mongolia Autonomous Region.