Ecology fragile is a common phenomenon in poverty-stricken areas. Therefore, the preservation of the ecological environment is an inevitable choice to the sustainable development of poverty-stricken areas. Food security is the top priority of minority poverty-stricken areas, and to promote food security is bound to affect the national ecological environment in the poor areas. In total,minority food security in the poor areas must be in the process of rational utilization of resources,application of the means of ecological agriculture,and choosing the appropriate crops and promoting ecological circulation based on ecology