Shortage of crop land is becoming the critical constraint for crop production and diversification in areas like Dera District where human population is increasing ever. Intercropping is one of the methods used for alleviating this problem, but farmers practice it rarely and it is not even well recognized by research and extension. Therefore, a field experiment was conducted in 2019 main cropping season in Dera District, Northwestern Ethiopia to assess the potential of intercropping of different legumes with maize in additive design at different intra row spacing for improving land productivity. The combinations of three different legumes (haricot bean, soybean and cowpea) and two intra-row spacing of the legumes (the recommended ones and twice the recommended ones) and their sole cropping including sole maize, totally 10 treatments, were laid out in randomized complete block design with three replications. Legumes with maize were planted on the same date in an additive series in the beginning of June. Phenological, vegetative growth, yield related parameters of the component crops, as well as, productivity and economic gains were used as experimental data for evaluating the study. Most agronomic attributes were significantly influenced by the treatments. Haricot bean intercropping with maize at 10cm intra row based on net benefit outperformed over all sole crops and other intercropping systems and hence it is recommended for the study area. Since this study was conducted only in one season and one location, it is however necessary to conduct similar studies further in different seasons and locations to come up with concrete workable recommendations. Keywords: Equivalent yield, land equivalent ratio, net return, sole cropping.