The IKONOS image provides the 1m high spatial pan and the 4m multi-spectral data, which can be merged to improve the classification accuracy of visual or computational interpretation. Based on these images, the classification and distribution of wetlands in Beijing urban parks were examined. In this paper the authors studied the landscape patterns with the help of remote sensing and GIS. The result shows that the urban parks are composed of large patches. The shapes of patches are regular in the area, and the difference in patches of the same type is very indistinct. With the increasing disturbance, the landscape diversity decreases and the dominance increases.