Abstract: Based on the desertification’s dynamic monitoring and evaluation, its impact on ecosystems has made significant progress in recent 40 years. Land desertification is one of the common problems facing the world today. More than 80% of the Turkmenistan territory is occupied by the deserts, covering an area of 410 000 km² and land degradation is a particularly serious problem. In the past 30 years, the human activity became a major factor affecting Turkmenistan oasis desertification. The degradation of land and ecological environment has been the great concerning subject. This paper takes Turkmenistan as the study area，and the MODIS imagery as the data sources. Through the surface Albedo and vegetation index，the Albedo-NDVI characteristics space was built up. The Albedo-NDVI meaning of the feature space can be extended, so the desertification graded index model can be established. The land desertification dynamic information was extracted from the past 13 years data, the study on the temporal and spatial variation characteristics of land desertification was carried out. The results show that in the past 13 years，Turkmenistan desertification land area was in a downwards trend, the total area of desertification lands was decreased by 9 332.61 km². However, the desertification degrees were increased, the areas of extremely severe desertification and severe desertification lands were added by 2 173.27 km² and 43 428.47 km²，respectively. The light desertification lands were translated into the extremely severe desertification and severe desertification lands. The non-desertification lands were gone up by 9 332.61 km² in the past 13 years，accounting for 12.4% of the non-desertification lands. In the past 13 years，the central areas of all kinds of desertification lands were removed from the northwest to the southeast and northwards again，the average northwards-removing distance being 89.55 km. Among them，the migration of light desertificaton lands is the most obvious, about 148.41 km.

Key words: Turkmenistan, Albedo-NDVI feature space, desertification, remote sensing monitoring