Abstract: In order to meet the market need for special sweet potato varieties, promote the development of sweet potato industry in Hebei Province, a new sweet potato variety‘Langyanshu 6’with high yield and good quality was bred by Langfang Academy of Agriculture and Forestry Science. Its female parent was the elite line ‘06-20’selected by Yantai Academy of Agricultural Sciences and the male parent was mixed pollens from 7 varieties,‘Yushu 868’,‘Yanshu 22’,‘Luoxushu 8’,‘Shangshu 7’,‘Mixuan 1’, and‘Zhongtai 9’. This variety had the characteristics of good sprout capacity, long tendril, more branches, concentrated storage roots, white and smooth chips, good taste, root rot resistance and good storage quality. It passed the new variety identification organized by the Achievement Transformation Centre of Hebei Department of Science and Technology in January, 2014, and named as‘Langyanshu 6’. The cultivation techniques of this high yield variety were developed. Test showed that the variety was a dual-purpose breed for starch and fresh edible, and had a prominent advantage in production, conformed to the breeding goals of food safety, product quality and production efficiency.