Abstract: In order to breed a new,quality,purple sweet potato variety,the Crop Institute of Fujian Academy of Agricultural Sciences and Fujian Agricultural Department collaborated in the study.It began by selecting appropriate parents and breeding technology.After several years of hard work,we successfully bred the new purple variety,Fushu 9.This good eating variety had the characteristics of higher yield and better tolerance to stresses than other purple varieties,such as Xiayin 1.The variety's tuber dry matter was 32.1% and starch content 19.9%.It was subjected to the Fujian regional variety test in 2005,certified by Fujian Committee for Crop Variety Registration in 2008.