Crop production does play an important role in Ethiopia's economy by generating income asrnwell as fulfilling the need of food. Gimbichu Woreda, is one of the potential area for croprnproduction in Oromiya Regional state. Climate change impact has threatened this potentialrnproduction area from time to time. Because of this, farmers are observed adopting differentrnpractices, i.e., climate smart agricultural (CSA) practices in the woredas of FAO, that help themrnto reduce the impacts and enhance the resilience of the farming system.. This study was aimed tornassess the intensity of adoption, effect of adoption on food security and income of farmingrnhouseholds and to identify the determinants of adoption intensity of CSA practices in Gimbichurnworeda, East Shewa of Oromia National Regional State, Ethiopia. Multistage samplingrntechniques were employed to select study area (Gimbichu woreda) and household respondents.rnA total of 204 households were selected using purposive sampling method and household surveyrnwas also conducted with structured questionnaire. Multiple linear regression models was used tornanalyze the effect of CSA adoption intensity on income and food security and to identify thernfactor that affect adoption intensity on income and food security and to identify the factors thatrnaffect adoption intensity. It was found that reducing tillage, crop diversification practices whichrninclude ( new crops and crop varieties, pest resistance, high yielding, drought tolerant and shortrnseason varieties) and crop rotation are the most widely adopted practices with 99.5%, 97.5%rnand 90.2% households practicing them, respectively. Whereas, tree based conservationrnagriculture was the least adopted practice with (15.7%) household practicing it. It could bernconcluded that high intensity level of climate smart crop production adopter households arernlikely better off in food security and income status. From targeted determining factors sex ofrnhousehold head, family labor size, farm land size, extension service, participation of socialrninstitutions, distance to market where buy agricultural input, accessing weather information,rnpossessing irrigation and off-farm income are statistically significant at 0.05 level of significantrnin relation to adoption intensity of the practices. It could be concluded that high intensity level ofrnclimate smart crop production adopter households are likely better off in food security status.rnFinally, it could be recommended that every stakeholder in the sector (Agriculture) should betterrnunderstand and take into account the factors that were identified in the study while implementingrnthe climate smart crop production.