This paper deals with household food security status and its determinants in the Girar Jarso Woreda. Household survey, field observations, key informant interviews and focus group discussions were the main techniques for generating primary data. Data’s were analyzed using Household Food Balance Model. Besides, mean and cross-tabulations of frequency distribution were used for analysis. Households in the study area were prone to food insecurity. The available dietary energy of study households met only 45.3% of the minimum daily allowance, 2100kcal during the study year, indicating a deficiency of 54.7%. The main factors determining household food security status were identified as household demographic factors (sex, age, educational status and family size) and access to productive resources (farmland, farm oxen, labor and farm inputs). Access to those productive asset help to understand the sustainability of household food security status. Eating less preferred foods, reducing the number of meals, purchasing foods through selling small animals/ruminants, grass, cow-dung and firewood were responded as the main coping mechanisms in the area. The study suggested the need of short-term and long-term activities from government bodies, donors and the households themselves to improve household food security status on sustainable bases.