The objective of this study was to assess the role and contribution of improved rice technologies inrnensuring rural householdsâ€™ food security enhancement in Chewaka district in Oromia regionalrnstate. For this study three kebels were randomly selected and 178 respondents were sampled. Bothrndescriptive and econometrics analysis were employed. In order to evaluate household foodrnsecurity, household food balance model were employed, Tobit model was used to assess rate andrnintensity of adoption and logit model was used for determining factors affecting household foodrnsecurity and adoption of rice technology and also ordered econometric analysis took place torncategorize and determine the factors affecting household food security status. Results ofrndescriptive analysis showed that adopters of improved rice varieties as compared with nonadopters are characterized by having better agricultural extension and educational status,rnyounger age , smaller family size than none adopter four variables are found to significantlyrndetermine adoption and intensity of improved rice varieties .those are education level, memberrnship in cooperative ,access to credit affects positively while family size affects negatively. Factorsrnaffecting food security of household indeed adoption of improved verity, membership in,rncooperative are those which have positive impact and proportion of land for IRV training hasrnnegative impact. Finally, household food security classified into four categorized by orderedrnlogistic regression in to food secured, moderately in secured, severely in secured and food inrnsecured. The study concludes that socioeconomic factor had significant effect on adoption of IRVrnwhereas they also influence household food security status. The research Recommended thatrnrecommends that rice production programs should be designed to improve the intuitional andrnsocioeconomic characteristics of rice farmers in the area and promotion of Agriculturalrnmechanization and food science research interventions be strengthened more Seed multiplicationrnand dissemination of improved varieties should be given due attention.