Two maize cultivars(Zhengdan-958 and Yuyu-22) and two soybean cultivars(Zhonghuang-24 and Zhonghuang-13) were selected under monoculture and intercropping modes(2:2 and 2:4 ratios) respectively, to explore the effect of maize-soybean intercropping modes on maize growth on the Loess Plateau. The result showed that, compared with monoculture, Zhengdan-958 intercropped with the two soybean cultivars can increase the chlorophyll relative content, leaf area per plant, stem diameter and dry matter accumulation of maize starting from the huge bellbottom period, and the plant height exceed that in monoculture in the late growth stage. When Yuyu-22 intercropped with the two soybean cultivars, the maize chlorophyll relative content and stem diameter were higher than that in monoculture starting from the huge bellbottom period, and the dry matter accumulation were higher than that in monoculture starting from the silking stage. The leaf area per plant was higher than that in monoculture significantly in the silking stage, but the plant height lower than that in monoculture in the late growth stage. The dry matter accumulation of Zhengdan-958 was higher than that of Yuyu-22 in the late growth stage under intercropping, so it was more beneficial to maize yield. In the selected maize-soybean intercropping patterns, Zhengdan-958 intercropped with Zhonghuang-24 with 2:4 ratio was more beneficial to maize yield on the Loess Plateau.