Abstract: In this research, Zhenglan banner grassland ground survey and remote sensing information adopted from the 1980s and the early 21st century is used, also, on the basis of grassland science, ecology and landscape ecology turf, by integrating landscape index on the landscape pattern analysis, Zhenglan banner grassland landscape changes were analyzed. The results showed that： The overall landscape fragmentation of Zhenglan banner for last 20 years has been increased, the numbers of different landscape plaque and patch shape index have different degrees of increase, plaque area of the station has little change, and no rule. Heterogeneity increased, and the situation was worsening trend in landscape, landscape richness has little change, most of the visual landscape diversit. evenness and landscape fragmentation increased, the role of advantages plaque type was weakened, the regional landscape balance and stability was weakened landscape, and the landscape was even more crushing.