Abstract: According to the data of arable land area in the counties of Horqin area,this paper summed up the change of arable land area and of gravity in Horqin area and the dynamic degree of land use and relative rate of change in the counties. This paper also analyzed the population and policy driving factors which lead to the change of the arable land. The results showed that total arable land in the Horqin showed fluctuations in the rising trend;arable land area changes in the Horqin Region existd great regional difference： the growth of arable land area in northern counties was far greater than the Horqin Region and the southern counties; the center of gravity of the cultivated land was obviously moving at the latitude and it divided into two stages in the longitudinal movement （it moved westward before 1996 and eastward after 1996）.