Abstract:[Objective] The Yunzhong-Xizhou mountains ecological network was constructed,and ecologically vulnerable areas within the ecological corridors were accurately identified,in order to provide a scientific basis for formulating ecological conservation and restoration strategies and enhance ecosystem connectivity and stability. [Methods] Taking the large-scale ecological corridor in the Yunzhong-Xizhou mountains region of Shanxi Province as a case study,the“ecological source-resistance surface-ecological network”framework was adopted to evaluate ecosystem service functions and ecological sensitivity.Morphological spatial pattern analysis （MSPA） was then employed to identify ecological sources.The minimum cumulative resistance （MCR） model was used to construct an ecological resistance surface.Subsequently,circuit theory was applied to extract ecological corridors and identify ecological nodes,ultimately constructing the ecological network for the study area. [Results] ① A total of 14 ecological sources were identified,with a total area of 1 192.53 km2,showing a spatial distribution pattern of relative concentration in the southwest and dispersion in the east.② A total of 27 ecological corridors were extracted,with a total length of 260.73 km.Additionally,35 ecological pinch points were extracted,covering 2.71 km2.23 ecological barrier points were identified,occupying 31.82 km2.The ecological corridors were concentrated in the central and western regions but dispersed in the northeast.The ecological pinch points and barrier points were scattered along the corridors connecting the ecological sources.③ The constructed ecological network had an alpha index （circuitry） of 0.71,a beta index （line-point ratio） of 2.08,and a gamma index （connectivity） of 0.82,indicating that the ecological network possessed a complex structure,good connectivity,and strong stability. [Conclusion] The ecological network constructed based on the evaluation of ecosystem services and ecological sensitivity is accurate and feasible,and it can effectively identify key areas for ecological restoration.The overall strategy for ecological restoration of ecological corridors at the local scale should be‘protecting ecological sources,restoring ecological pinch points,and removing ecological barriers.’