Abstract: Integrated watershed management is very important for maintaining the health of watershed ecosystems and achieving sustainable development of watersheds. Modern watershed management should be guided by Xi Jinping's Ecological Civilization Thought. The connotation of integrated watershed management from the perspective of ecological civilization was explained, that is integrated watershed management should consider the overall situation of the whole watershed, make overall plans for protection and development, adopt comprehensive means such as administrative, legal, economic, scientific and technological, propaganda and educational and other means, coordinate the relationship between society, economy, environment and production, life, ecological water use, so as to promote the comprehensive, coordinated and sustainable development of the economy, society and ecological environment in the watershed. The current situation of water environment management in Erhai Lake Basin was analyzed. From the perspective of ecological civilization, the water environment management in Erhai Lake Basin must coordinate the ecological elements of the mountains, rivers, forests, fields, lakes and grasses, and coordinate the upstream and downstream, water and land, as well as the relationships between relevant departments and industries. The comprehensive management level of Erhai Lake Basin should be improved by perfecting the mechanism and system, strictly enforcing the law and supervision, enhancing the monitoring ability, strengthening the support of science and technology, and consolidating the supervision foundation, so as to promote the practice of water ecological civilization in lake basin.