Abstract: 10Quanhua series peanut cultivars bred since 1996 were analyzed for their genetic improvement of main traits and pedigree.The results showed that the main traits of Quanhua series peanut cultivars had been improved significantly.Among the 14 direct parents associated with the 10 peanut cultivars, Quanhua 327 and Yueyou 92 were more frequently applied.Pedigree analysis showed that Quanhua 10 and Quanhua 327 were the core parents of Quanhua sereis, with which 7cultivars presented consanguineous relationship, and three of them even had kinship with both the two cultivars.This study also made discussions about the modification of genetic basis, anti-bacterial resistance, parent selection and breeding methods of Quanhua series peanut cultivars which would benefit new cultivars breeding.