[Objective]The aim was to provide DNA level basis for Xinjiang Pear classification position. [Method]Through cluster analysis and genetic similarity coefficient analysis,the classification study on Xinjiang Pear was carried out by using AFLP molecular marker technique. [Result]When the threshold value is 15,Xinjiang Pear cultivar Lanzhouchangba hold together with Huachangba first,then with Pyrus communis L. cultivars Bali,Hongbali,Hongqie,Qieli,Baoli＇asika,Zhulibi＇en and Xinjiang Pear cultivar Qili＇amuti. Among 7 Xijiang Pear cultivars,the euclidean distance among species within groups ranged from 2.646 to 10.050. And the smallest euclidean distance between Xinjiang Pear and P.pyrifolia Nakai,P.communis L,P.Bretschneideri Rehd as well as P.ussuriensis Maxim were 7.746,7.746,7.810 and 8.165,respectively. [Conclusion]Xinjiang Pear has the closest relationship with P.communis L.
