Abstract: The paper aims to improve the edible sunflower varieties in Hexi area. We analyzed 10 agronomic characters of 8 edible sunflower varieties with yield, quality and incidence rate respectively by adopting grey correlation analysis. The results showed that: the dominant factors that influenced the content of coarse-protein were the fertility period and stem thickness; the dominant factor that influenced the content of coarse-fat was seed shape, and the width and length of seed were also the dominant factors affecting the content of seed oleic acid and linoleic acid; the seed kernel rate and fertility period were the dominant factors affecting the incidence rate of plant; the 100-grain weight and sunflower head diameter were the dominant factors affecting the yield. The above indexes can be used as reference indexes for choosing edible sunflower varieties in Hexi area.