| As high photosynthetic efficiency, thermophilic and short sunshine C4 crop, maize more sensitive to water deficit. The resistance drought stress, evaluate drought tolerance of different genotypes, has important significance on maize yield efficiency. In this study, the experiments were split randomized block designed, drought stress as the main block, genotypes as the sub-blocks, and sub-blocks were randomized within the main blocks. The results of this study showed that drought stress significantly affected maize yield (P<0.01), ear density (P<0.05), Kernel numbers per ear (P<0.05), and thousand kernel weight (P<0.05). Different genotypes cultivar significantly difference by drought stress(P<0.05), the yield decreased in JNK728 (15.49 %) < ZD958 (17.67 %) < NH101 (21.81 %) < MC703 (26.18 %) < LC808 (27.31 %) < DH 618 (27.41 %), the corresponding genotypes of ear density, Kernel numbers per ear, and thousand kernel weight were the same trend as yield decreased.