Abstract: The photosynthetic and quality characteristics of seven sweet cherry varieties in greenhouse were studied by principal component analysis and cluster analysis, in order to provide reference for the selection of sweet cherry varieties in greenhouse in Northern Xinjiang.The results showed that there were differences in photosynthetic and quality indexes among different varieties of sweet cherry in greenhouse, and the net photosynthetic rate of seven varieties of sweet cherry ranged 11-15 μmol·m^-2·s^-1.Single fruit weight was 7-10 g.Soluble solids content was 15%-22%.The hardness was 160-290 g.The chewability was 8-19 mJ.The cluster analysis divided the seven varieties into three categories.Through the principal component analysis, four principal components were extracted, and the cumulative variance contribution rate reached 93.33%,which could reflect most of the information of the original indicators.The comprehensive scores of the seven varieties were ranked as follows, ‘Tieton’＞‘Lapins’ ＞‘Van’＞‘Summit’＞‘Mingzhu’＞‘Zhuangyuanhong’＞‘Jiahong’.