Abstract: This paper used GGE-biplot to analysis high-yield, stability and adaptability of maize yield, with seven new maize varieties planted in five ecological conditions of high altitude in Guizhou Province, to provide references for identification of new varieties and maize high-yield production. Meanwhile, representativeness and discrimination of five different testing sites was analyzed. The results showed that: 'Shengnong4' had the highest yield, while 'Jinfayu201212' was the lowest, 'Shuiyu108' had the good stability, while 'Shengjing847' had low stability. 'Shengnong4' was the most ideal varieties on the overall. E2 and E4 had better discrimination, while E5 had the best representativeness. In a few words, E2 and E4 had higher discrimination and better representativeness than the other testing sites.