Chengdu suburb was taken as the studied area, the information of landscape pattern was obtained by the methods of auto-classification and the visual interpretation after the correction and enhancement of remote sensing images, and then the landscape pattern indexes of studied area were analyzed after the selection of the analytical indexes. The results indicated:the general ecological environment was at a well state; few landscape types occupied the dominant position in general landscape pattern, particularly in Pi and Wenjing counties; there were some differences in the ecological environment among different counties; landscape diversity maintained well in Shuangliu and Wenjiang counties but unitary in Longquanyi and Qingbaijiang counties; landscape distribution in large area was more obvious in Shuangliu and Xindu counties; the influence intensity of human activities on landscape pattern was different among different counties, Shuangliu county was influenced most and its ecological environment was destructed acutely, while the ecological environment in Qingbaijiang and Longquanyi counties were protected well.