The purpose of this study was to analyze the contributions of small scale irrigation to householdrnfood security and income and to describe factors affecting the small scale irrigation schemes. Thernstudy was conducted in Gobu Seyo district on GambelaTere small scale irrigation scheme. Tornachieve the objective the study both quantitative and qualitative methods were used thatrnemployed descriptive survey approach. Data were collected from 150 household heads (75rnirrigation users and 75 none users) through questionnaire, which were drawn by simple randomrnsampling technique. In addition, household field observation, Focus Group Discussions and keyrninformant interviewswere used to collect data. To get the food security status of households, arnmodified form of a simple equation termed as Household Food Balance Model, originallyrnadapted by Degefa (1996) from FAO was applied. The findings of the study highlights that therernis a positive impact of irrigation because it brings increased agricultural production andrnproductivity, which in a way improves food security situation income and asset building.rnRegarding food security, irrigation users are in a better position in food access, utilization andrnavailability. Irrigation users are also in a better position in dietary frequency and diversity. Aboutrn76% irrigation users were food secured (get >2100 kcal) while only 49.5 % of none irrigationrnusers were food secured. Irrigation, resulting in generating more income, the income of irrigationrnusers is more than double of none irrigation users. The household asset of irrigation users hasrnincreased by 422%. Furthermore, some of the factors affecting small scale irrigation were foundrnto be skill gap in utilization of irrigation agronomy, instability of market, shortage of labour andrnlose of water and poor maintenance of infrastructures. It has been, therefore, concluded that smallrnscale irrigation development contributes for income and food security of beneficiary households.rnThus, the concerned government organizations and none-governmental organizations should join hands to support the development of such small scale irrigation schemes. Linking the farmers with marketing system, training on irrigation agronomy, promotion of post harvest technology and making the users aware of effective and efficient utilization of water irrigation management has paramount contribution in food security in income improvement