Abstract: Using garlic as the test material, the gray correlation method and DTOPSIS method were used to study the relationship（Closeness） among garlic yield, agronomic traits, and quality traits, and a comprehensive evaluation was made on the six garlic varieties. The results showed that the agronomic traits closely related to yield were garlic plant height, harvested plant number, outer petal number, bolting rate, growth period and single ball weight, and the quality traits closely related to yield were allicin, alliin and vitamin C, which should be the key research objects for comprehensive evaluation of garlic germplasm resources in the future.The comprehensive evaluation of the varieties xjgar 1, xjgar 3 and xjgar 4 in the two palces was relatively high, which could be used as garlic germplasm resources and basic resources for innovative breeding for in-depth research.