The overall objective of this research is to examine the contribution of small-scale irrigation onrnhousehold food security in Hidhabu Abote Woreda, Oromia Region, Ethiopia. A three stagernsampling procedure was employed to draw 212 sample households head (97 irrigation users andrn115 non-users) from three kebeles of the study woreda. The kebeles were selected using simplernrandom sampling technique and farmers living in the kebeles were first grouped into two stratarn(users and non-users), and the study households were randomly selected. The necessary datarnwere collected through household surveys, field observations, focus group discussions and keyrninformant interviews. To analysis data both descriptive and econometric statistics werernemployed. Binary logistic regression and ordered logistic regression were used to determinernfactors affecting the decision of households to participate small scale irrigation andrndeterminants of household food security respectively. Furthermore, Household Food BalancernModel was applied to calculate the food security status of households. The binary logistic resultrnrevealed that education of household head, family size, off farm, credit and training positivelyrnaffect households participation in small-scale irrigation. In contrast, farm plot distance to waterrnsource of the household head negatively affects the decision to participation. The food securityrnstatus of sampled households were classified into four such as food secured (109), mildly foodrninsecure(0), moderately food insecure(33)and severely food insecure(70) by using HouseholdrnFood Balance Model. The result of ordered logistic regression revealed that sex, livestockrnholding, cultivated land size owned and food aid contributed significantly and positively to foodrnsecurity status, while family size had a significant and negative effect on food security status inrnthe study area. Furthermore, the result of the Household Food Balance Model shows that aboutrn51.41% irrigation users were food secured (>2100kcal) while only 46.08 % of none irrigationrnusers were food secured. The study conclude that small scale irrigation participation hasrnoutstanding contribute to household food security status. Finally, the research recommendedrnthat training, expanding education; developing ponds, spring and water harvesting forrnirrigation, and giving credit access for female household heads to improve households onrnirrigation participation. Similarly, encouraging women household, family planning and givingrnmore attention on livestock raring to improve food security status of the sampled household.