Abstract: Seed moisture content， purity， germination percentage， pest and disease infection rates， varietal purity of 68 maize cultivars in Zhejiang Province were tested in this study. The results showed that 13 cultivars were not qualified and the qualified rate was 80.9%. The qualified rates of waxy maize， sweet maize and normal maize were 84.2%， 61.1% and 100%， respectively. In addition， there were 12 maize cultivars which did not reach the standard of the package label， and the labeling qualified rate was 82.4%. The labeling qualified rates of waxy maize， sweet maize， normal maize were 81.6%， 72.2% and 100%， respectively. Finally， the improvement methods of seed quality were also discussed.

Key words: maize seed, moisture content, purity, germination percentage, pest and disease infection rates, varietal purity