Based on many years research in loess plateau region，the quantity and quality of land resources，the current state and potentiality in future of food product and the trend of both popu-lation and food product growth are'discussed. It will be 0. 17hm²and 0.15hm² available cultivated land per person，so that the food product will be 2 520kg/hm² and 3 470kg/hm² in the year 2000 and 2010 separately. The natural rate of population growth will come up to the standard by our government and each person will have 400kg and 500kg food or more in the both years separate-ly,the conclusion is that loess plateau will feed its population fully in the future.