This publication focuses on the issue of food security in the Tibet Autonomous Region. It includes a general introduction to Tibet, a description of the local population's current access to food; an identification of the different food production systems currently in use; discussions of changes in food production and demand; an evaluation of the potential to increase the productivity of various food-production systems; and finally a set of policy recommendations to ensure the future food security of the country. Although food production has increased recently, the present situation of food security is still not optimistic. Low per capita food production and food trade, great variations among regions and fluctuation of food production over time; and relatively low energy intake by the indigenous people have shown the overall low level of food security in Tibet. The main options suggested for coping with the weaknesses and challenges are harnessing the comparative advantage of Tibet's natural resources; promoting highland agricultural products for external markets; strengthening the application of agricultural technology; harnessing the potential for increasing cereal production; and developing the livestock production of the crop-dominated farming systems zone.