A field trial was carried out at Sakha Agriculutural Research Station, Kafr El-Sheikh Governorate during the two successive winter growing seasons 2009/2010 and 2010/2011. Treatments were: A traditional  irrigation (control),  B irrigation based on Ibrahim equation (no- deficit) , C irrigation with 85% from Ibrahim equation (deficit ( , D irrigation with 70%from Ibrahim equation (deficit) and R: Rainfall i.e. left for rainfall following cultivation.          The main target of the current study was to investigate the influence of irrigation levels on faba bean yield, its components as well some water relations. The main finding of this study could be concluded as follows:          The highest values of water applied [irrigation water (IW) +rainfall (Rf) were recorded under treatment A (control) and the mean  seasonal value was 2874.64m³/fed. (68.44cm). On the contrary, the lowest value was recorded under the conditions of rainfall (treatment R) where the seasonal value was 906.49m³/fed. (21.58 cm).          Regarding crop consumptive use (CU), the seasonal values can be arranged in descending order as; 29.95 > 29.55 > 27.19> 26.56 > 9.81 cm for B, A, C,  D and R treatments, respectively.          Concerning seed yield (kg/fed.), the highest mean values were recorded under irrigation treatment  A and the value was 1102.71 kg/fed. On the other hand, the lowest value was recorded under the conditions of rainfall with treatment R and the seasonal value was 503.86 kg/fed.           Regarding all studied parameters, the treatment B which irrigated based on Ibrahim equation gave the highest number of pods 16.1/plant. While the treatment A of traditional irrigation gave the highest plant height 101.1 cm, number of branches 6.7and 100-seed weight 74.9 g. On the other hand , the lowest mean values were recorded under irrigation treatment R which left for rainfall during the growing season after planting irrigation.