The experiment was carried out to evaluate the nutritional quality characteristics of different potato varieties,and screen varieties which rich in nutrient content.The results showed that the quality was different in different potato varieties.Comprehensive analysis with Membership Function indicated that the best nutritional quality was’Yanshu 7’,’Zhongshu 5’,’Helan 2-12’.There were 5 varieties which comprehensive quality was better,account for 36% of total varieties.