Study on the dynamic characteristics of cultivated land plays a very important role in protection,consolidation and utilization of cultivated land.By taking remote sensing images in 1991,2006and 2009asdata source,the characteristics of amplitude and speed,roll-in and roll-out,spatial distribution,and landscape distribution of cultivated land changes were analyzed by means of spatial analysis function of GIS.Results show that the total area of cultivated land increased,but the net annual average speed declined in thethree years.Unutilized land,forest land and construction land were the main land use types transformed intocultivated land.Cultivated land was mainly transformed into forest land,unutilized land,grassland and construction land.Spatial differences of cultivated land change in Bayan County were remarkable,and newlyincreased cultivated land was mainly from the reclaimed floodplain along the Songhua River,deforestation ofnortheast hilly areas and construction land change in northwest.The number and density of cultivated landplaque tended to increase,human interference extent increased,and fragmentation enlarged.Landscapeshape index and fractal dimension tended to decrease and the shape of cultivated land landscape plaque becamesimpler and more regular.The high connectivity of cultivated land landscape indicated that the spatial distribution of cultivated land landscape had a high degree of aggregation.