‘Changdan 611’, a new maize variety, was bred by Changchun Academy of Agricultural Sciences. Its parents were "K738" as female parent and "K100" as male parent. It was approved by Jilin Provincial Crop Variety Examination Committee in January, 2018 and register number was Jishenyu 20180010. In this paper, the parental origin, breeding process, characteristics and cultivation techniques of this variety were introduced in detail.