Abstract: Quality characters of 64 yam germplasm resources were analyzed. Results indicated that the variation coefficient of iron, amino acid , total saponins and zinc content respectively were 66.2%, 59.9%, 44.09% and 42.77%. Starch content had big difference, D.persimilis (23.52%) > D.alata (20.48%) > D.opposita (12.93%). Factor analysis results showed that the cumulative variance contribution rate of starch and amino acid content was 66.786%, which can be better to evaluate and judge the yam quality .Correlation analysis showed that it was positive correlation between the starch content and total saponins content, it was significantly positive correlation between protein content and total saponin content, which meant that starch and protein content were mutual promoting. Cluster analysis showed that the yam resources can be divided into three categories, which was respectively high starch, low starch and high iron. Analysis on quality characters of yam germplasm resources , can provide reliable basis for yam germplasm innov ation and breeding in the future.