The maize was treated by blast drying and modulation. The samples with initial moisture content were 14.5%, 11.7%, 9.9% and 7.8%(wet basis), respectively, and air-tight stored at 35 ℃. The maize deterioration parameters including seed viability, conductivity, catalase activity, fatty acid value and tasting score were monitored. The change of moisture content and storage quality of the maize stored in high temperature was studied. The results showed that the seed viability, catalase activity and tasting score of the maize with moisture content of 14.5% decreased much more than the others, which were 100%, 90.4 mgH2O2/g and 42.1, respectively; the conductivity and fatty acid value of the maize with moisture content of 7.8% increased a little, which was the smallest of the all, 10.84 μSocm-1og-1 and 12.8 mgKOH/100 g, respectively.