[Objective] To quantitative analyze the landscape stabiligy of Altay forest farm in order to provide the basis for planing and constructing the forest landscape scientifically and rationally.[Method] Taking the Landsat 8 OLI image in 2016 as the data source, landscape stability assessment models were created by using principle component analysis method. The stability of forest landscape in the whole research area was analyzed by Kriging interpolation.[Results] Shrub land and arbor forest were the dominant forest landscape in the study area, which were widely distributed. The area of nursery land and forestry auxiliary land was small, but the distribution was more concentrated. Forest landscape presented high landscape heterogeneity. The stability of forest landscape among different landscape types was significantly different. The stability was ranked as:shrub land > arbor forest > nursery land > barren land > sparse woodland > forestry auxiliary land.[Conclusion] In 2016, the stability of forest landscape was at a high level, the distribution of regional differences was relatively balanced. In the southwest mountainous areas, the ecological environment was good, and the forest landscape structure was intact.