Agriculture is the backbone of Ethiopian economy and 85% of Ethiopian population are living inrnrural areas based on agricultural economic activities. That is why the sector attracted thernattention of the Government and NGOs in general and agricultural institutions in particular. As arnresult, agricultural extension program is one of the inputs for the development of the agriculturalrnsector. However, agricultural extension program faced various challenges in Hintalo-WajiratrnWereda in its implementation process. Hence, the objective of this research is to explore thernfactors affecting the implementation of agricultural extension program in Hintalo-WajiratrnWereda. In doing this, exploratory and explanatory approaches with qualitative and quantitativernmethods are employed. However, the research has involved more of qualitative than quantitativernmethod. Purposive and random sampling techniques are employed in order to select the studyrnsites within Hintalo-Wajirat Wereda and study respondents respectively. To collect the requiredrnprimary source of data, instruments of data collection which include questionnaire, interview,rnfocus group discussion and practical site observation were used. Secondary source of data tornstrengthen the primary source of data was also carefully examined. In the study, it is revealed thatrnlack of awareness, provision of education and training, absence of supervision and coordination,rninsufficient daily perdium, inadequate infrastructure, lack of credit service and expensive naturernof the price of agricultural inputs were the major factors affecting the implementation ofrnagricultural extension program in Hintalo-Wajirat Wereda. Based on the findings of the study, thernresearch recommended that creating community awareness, providing educational and trainingrnfacilities, supportive supervision and coordination, establishing sufficient infrastructuralrnconditions, provision of sufficient allowance to agricultural extension workers and credit servicernto the rural households and increment of the price of agricultural inputs should be the focus ofrnareas by the Governments and NGOs.