Abstract: The potato varieties for suitably freshly eating, processing and both mainly planted in Xinjiang were screened out through measuring and analyzing the quality and clustering of seven potato varieties.The results showed that the differences in main quality indexes of different potato varieties were significant ( p < 0.05) .There was a certain correlation of quality indicators between some potato varieties.By cluster analysis, 7 potato varieties were classified into the following 4 categories, Xiazhai 65, Xiabodi and Kexin 19 were suitable for processing, Zhongshu No.18 and Zihuabai were appropriate for fresh eat.For Favorata, processing and fresh eat were both proper which was neither for Kexin No.19.