Abstract: The paper studied the forest landscape in Jianfengling forest with the DEM and 2013 forest resources inventory data. Researching on II and Ⅲ dimensional landscape features of forest landscape and suitable particle size of landscape. Draw the following conclusions: mixed forest was the dominant forest landscape, distribution widely, the number of patch in high forest was the largest, bamboo and nursery were the inferior forest landscape, distribution of nursery were more concentrated than bamboo; data format conversion effect on landscape area and patch number, the mixed forest and high forest changed obviously, the patch number of bamboo, nursery and no standing woodland has no changes, but the area of bamboo and nursery was reduced, no standing woodland area increased. shrubs woodland mainly distributed at the altitude of 300-500m, the mixed woodland distributed at the altitude of 500-700m, trees woodland mainly distributed at the altitude of 300-500m, all of nurseries distributed at the altitude of 0-300m, no standing woodland mainly concentrated distributed at the altitude of 300-500m, suitable forest land mainly distributed at the altitude of 0-300m, at the altitude of 300-500m, the bamboo area was the largest. Terrain almost has no influence on suitable particle size of landscape in Jianfengling forest. The suitable particle size of landscape was 150m in Jianfengling forest. The conclusions provided guidance and reference for the scientific management of Jianfengling forest resources.