Abstract: [Objective]The construction of an ecological security pattern in the Keriya River Basin has important reference value for improving local ecological quality, ecological restoration, and ecological protection. [Methods]In this study, focusing on the Keriya River Basin as the study region, the importance of ecological functional services such as water conservation, soil conservation, habitat quality, and carbon storage was quantitatively evaluated using the InVEST model; By constructing an ecological sensitivity evaluation system, the ecological sensitivity of the study area was assessed to determine the location of the ecological source. Then, the MCR model was used to construct the ecological resistance surface, and ArcGIS software was used to identify the ecological corridor, ultimately constructing the ecological security pattern of the study area. [Results] It was found that there were a total of 2 ecological source areas in the study area, with a total area of 4610.47 hectares, located in the central and southern regions of the study area where forests and grasslands were clustered and distributed; Ecological corridors play an important role in promoting species activity, soil and water conservation, and enhancing biodiversity. There are three ecological corridors with lengths of 582.75km, 113.43km, and 65.11km, respectively, with an average length of 253.76km. [Conclusion]By comprehensively evaluating the importance of ecosystem services and ecological sensitivity in the study area, this study identifies ecological sources, constructs ecological resistance surfaces and corridors, and ultimately establishes an ecological security pattern. The results can provide a scientific basis for optimizing ecological security patterns, implementing ecological restoration, and developing conservation systems in the Keriya River Basin.