Migration is one of the important research agendas in regional development as it encompasses both placernand people dimension besides to its dynamic nature. Thus the aim of this study is to identify therndeterminants of Households' seasonal out-migration and its nexus with the Food Security status by takingrnTsagibji District, Amhara Region as a case. Accordingly, a quantitative research approach was mainlyrnemployed by complementing it with a qualitative approach to triangulate the findings. Parallel to therncommon secondary sources, the study used metrological data from NMA to get the full picture of thernlivelihood system in the district. in this study; The Primary data was gathered from a sample of 325 ruralrnhouseholds using household survey, and key informant interviews and focus group discussions. werernemployed to gather qualitative data. Quantitative data analysis techniques: descriptive and inferentialrnstatistics were computed using STATA so to assess the availability, consumption and access aspect ofrnhousehold food security status, three models, namely: Household Food Balance Model (HFBM)rnHousehold Food Insecurity Access Scale (HFIAS) and Months of Adequate Household Food Provisioningrn(MAHFP), were computed. The result of the binary logistic model analysis revealed that, household sizernand participation in the productive safety net program are significantly and positively related withrnseasonal migration, while food security status, sex of the household head, total land size, access and usernof inputs: credit service, fertilizer utilization, extension service, improved seed, tropical livestock unit,rnand educational status are significantly and negatively related to seasonal migration status level of ruralrnhouseholds. Moreover, both push and pull factors namely environmental induced factors and economicrnreasons are the main attributing factors for migration. The result using HFBM revealed 57% of thernsampled migrant households were food insecure. Seasonal migration has a positive and negative effect onrnthe livelihood of households. Based on the findings in the research, it is suggested that incomerndiversification, increase agricultural inputs, employment opportunities, and environmental rehabilitationrnis important to improve the livelihood of households.rnKeywords: Seasonal migration: Food security: Livelihood strategy: Adaptive: Coping