Maize single-cross variety Wandan No.8 was bred by self-line Wanxi46(female) And sele-line Wenhuang31413(male) in Crop Resarch Institute Anhui Academy of Agricultural Sceince,maturing stage was between 95-100d. According to the variety test , Wandan No.8 has the characteristics of high and stable yield?wideadaptation?good resistsnce.It has been approved and released by the National Committee of Crop Variety .