Abstract: Ethnic areas are important resource-rich, water system source and ecological barrier areas in China. The construction of ecological security pattern is directly related to the ecological security and sustainable development of the country. Taking Haixi Prefecture as an example, the article set two scenarios for ecological security pattern, namely, the priority of ecological value and the priority of potential for realizing the value of ecological products. Based on the ecosystem data of 2000, 2010, and 2020, the article coupled the GMOP-FLUS model and the MSPA-MCR method to simulate the characteristics of ecological elements′ evolution in Haixi Prefecture in 2030, and to portray the two types of ecological security patterns. This study found that, there were 11 important ecological sources in Haixi Prefecture, with a total area of 803.59hm2 and an average connectivity of 2.45. There were 14 important ecological corridors, with an average length of only 93.39km. Under the ecological value prioritization scenario, the area of forests and aquatic ecosystems might increase significantly, compared to the current situation. The expansion mainly occurred in the transition zones between other ecosystems and these ecological elements; The important ecological sources area increased, and the average connectivity was higher, and the average length of ecological corridors decreased. Under the ecological product value realization potential priority scenario, the scale of ecological resource use in Haixi Prefecture might become smaller, compared to the ecological value priority scenario. The expansion of farmland and settlement landscapes was obvious; The expansion area was mainly concentrated in the interface area between farmland, settlement and ecological land; The area of important ecological source land decreased and the fragmentation was deepened, with a small difference in the average connectivity, and the average length of ecological corridors decreased. These results provided effective theoretical support for the future ecological planning and path selection in Haixi Prefecture, and provided references for the construction of ecological security network in ethnic areas.