In Ethiopia, growing of human population on one hand and progressively shrinking agricultural land availability per capita and drought on the other warrants temporal and spatial intensification of crops using multiple cropping systems. A field experiment was conducted in northwestern Ethiopia during the 2017 and 2018 cropping seasons with the objective of assessing the competition, production efficiency and yield stability of finger millet and legume intercropping. Two legume crops (haricot bean (Phaseolus vulgaris) and lupine (Lupinus angustifolius )) were intercropped with finger millet (Eleusine coracana) using two intercrop planting methods (row and mixed) and three-finger millet-legume planting ratios (100%:75%, 100%:50% and 100%:25% of the respective recommended seed rate of sole crops). Two sole crop finger millets (planted in rows and broadcast) and two sole legume crops (haricot bean and lupine) were included as checks. The experiment was comprised a randomized complete block design with three replications. Results indicated intercropped finger millet and total land output yield from finger millet-haricot bean row intercropping at 100:50 planting ratio and sole finger millet planted in a row improved better yield stability. Finger millet-haricot bean row intercropping at 100:50 planting ratio had also resulted in higher grain yields of the component crops, area time equivalent ratio (ATER) (1.34), relative production (38%) and economic (314%) efficiencies with a relatively lower competitive ratio. Thus, this cropping system offered increased productivity and economic return and is a viable option for increasing household food security. Keywords: row intercropping; mixed intercropping; production efficiency; yield stability