A major motivation is to diagnose the objective analysis results of different resolution numerical models through some methods and to compare the qualitative difference of the model analysis in NMC. The results show that it is obviously different that the analysis results of the medium-range numerical model in NMC have been carefully compared with that of ECMWF. The regions of the more obvious difference are near the Poles,the QinghaiXizang-Plateau in China and the Pacific Ocean area. On the other hand,the comparison of the objective analysis results between T106 and T63 model indicates that T106 is better than T63 for higher resolution.