Lijiang River is one of the most beautiful rivers in the world. In this study, in order to analyze the ecological sensitivity of Lijiang River, five ecological sensitivity respresentive factors affecting the eco-environment of Lijiang River, i.e., slope, elevation, land-use, water,
and NDVI (Normalized Difference Vegetation Index), were selected and their weights determined by AHP. By applying ... [Show full abstract] GIS spatial analysis technique, these five ecological sensitivity factors were divided into 4 parts, i.e., high sensitive area, medium sensitive area, low sensitive and non-sensitive
area, and spatial distribution of the ecological sensitivity for Lijiang River was figured out. Results showed that there existed a significant spatial differentiation in the ecological sensitivity of Lijiang River, and the non-sensitive, low sensitive, medium sensitive and high sensitive
areas accounted for 24.5%, 27.8%, 31.0% and 16.7%, respectively. Lastly, suggestions on protection and maintenance of the Lijiang River's ecological security were proposed, for example, high sensitive areas can be regarded as natural reserve, medium sensitive areas could be regarded as development
area with controls, and low and non sensitive areas could be used as appropriate development areas based on strict controls of three wastes. This study is expected to provide some scientific references for the environmental protection and economic development of Lijiang River.