Abstract:In view of the special geographical environment and socio-economic conditions of the plateau mountainous area, the plateau mountainous area is currently facing challenges such as rapid urban expansion and high pressure on ecological protection. Taking Zhenyuan Yi and Hani and Lahu Autonomous County of Yunnan Province in the plateau mountainous area as a case study, this study integrates ecosystem service importance assessment with morphological spatial pattern analysis to comprehensively identify ecological sources from both functional and structural perspectives, and construct ecological corridors using circuit theory. Furthermore, identify ecological pinch points and ecological obstacle points, build an ecological network, and finally put forward targeted suggestions based on the development status of each township. The results show that Zhenyuan County contains 21 ecological sources and 38 ecological corridors. A total of 23.31 km2 of the pinch area and 40.00 km2 of the obstacle area are identified. The ecological sources and corridors are mostly distributed in the west of Zhenyuan County, while there are obvious faults in the east. Finally, based on the development status and development vision of each township, the ecological network system of' four districts, one axis, multiple corridors and multiple nodes' in Zhenyuan County was comprehensively constructed, and the future development focus and direction of each township were proposed.