Achieving food security is development agenda for Ethiopia due to the presence of food insecure people in different parts of the country. Over 80 percent of Ethiopian population live in rural areas and are heavily dependent on rain-fed agriculture. Agricultural productivity of rural people is still low due to overuse of natural resources, climate change, and others that reduce per capita food production which is the challenge of the country. The paper review determinants of food security, cause of food insecurity and coping strategies practiced in Ethiopia. Annual income, livestock and land holding, livestock feed, fertilizer usage, access to veterinary and extension services, credit access, remittances, access to employment and oxen ownership positively affect food security while family size, livestock disease, dependency ratio, distance to market, age of the household head negatively affect food security. Environmental degradation, high population growth, diminishing land holdings, outbreak of plant and livestock disease, pests, chronic shortage of cash income, limited household assets, poor social and infrastructural facility, instability and armed conflicts, pre and post-harvest crop loss and lack of on-farm technological innovations, climate change, drought, flood, frost attack, lack of oxen, poor soil fertility, weak extension services, lack of employment opportunities, high labor wastage, corruption and political instability, lack of appropriate policies and institutions and the like are causes of food insecurity. sale of more livestock than usual, borrowing of food or cash, reduce number and size of meal, sale firewood and charcoal, seasonal migration, seeking alternative or additional job, rely on less preferred and less expensive food, seeking relief assistance, short term/seasonal migration, seeking alternatives or additional jobs, becoming temporary trade, household splitting, consume wild food, remittance, participating in cash basis project works, diversification of livelihood incomes, Purchasing of grains from market, Renting out land are some of coping strategies practiced in Ethiopia.