Based on the spatial database of land use of Suzhou in 1985 and 2000, fractal dimensions (D) and stability indexes (S) as well as average D and S were calculated for cropland, woodland, grassland, water area, industrial and residential land, unused land with the fractal model. Dynamic changes in land use in Suzhou in the past 15 years were analyzed. Results indicated that the distribution of different types of land use in Suzhou City demonstrates fractal properties. From 1985 to 2000, woodland, grassland, industrial and residential land tended to be more inerratic and stable, whereas cropland and water area more complex and unstable. Unused land remained unchanged. During this period, the land use structure of Suzhou was unsteady, and its form became more complex.