With the rapid development of social economy and growth of population, the quantity of arable land has decreased continuously and the quality of cultivated land has been reduced increasingly in Hu.nan Province. Scientifically predicting the demand on ar able land of Hu.nan Province and defining practical preserve measures will play an important role in its socioeconomic development. From the aspects of foodsafety, economic development, and ecological protection, the study predicts that the demand of cultivated land in Hu.nan Province in 2015 and 2020 is 3940900 and 3440700 hm², respectively. The result will be an important reference to the landuse planning in Hunan Province.