Abstract: In order to explore the performance rules of the new maize varieties traits in different analysis models,and make objective and reasonable comprehensive evaluation,this paper used AMMI model,grey correlation degree and principal component analysis to analyze the 14 traits of 15 maize varieties（lines）.The results showed that the interaction effect of the principal components IPCA1,IPCA2 and IPCA3 of the interaction between maize yield genotype and environment accounted for 90.49%,indicating that AMMI model analyzed the interaction information between genotype and environment thoroughly;In the analysis of variety stability Diand pilot discrimination parameter Dj,varieties G1 and G3 belonged to high and stable yield varieties,G15 was low and stable yield varieties,and pilot E2,E1 and E5 had strong discrimination to varieties;Through the interaction of varieties and locations,it was concluded that varieties G1,G3 and G15 had good adaptability and stability.In conclusion,AMMI analysis scientifically reflected the interaction effect of additive genetic model in combination with the field yield performance and significant difference of varieties.The grey correlation degree and principal component analysis showed that the grey comprehensive evaluation values Giwere 0.757 4 and 0.716 0 respectively.Varieties G1 and G3 with comprehensive scores of principal components of 0.62 and 0.58 had good comprehensive characters and reliable high yield,stability and adaptability.G15 ranked low in each analysis method,indicating that its comprehensive character was poor,and it was a low yield and stable yield variety.