The quality of the ecological environment directly determines the quality of people's livelihood. Improving the ecological environment means improving people's livelihood, and destroying the ecological environment means destroying people's livelihood. In recent years, China has paid more and more attention to ecological and environmental protection issues. We use ArcGIS software to build a comprehensive evaluation map of ecological environment, so that we can more intuitively analyze the ecological environment status of various regions in China, so as to facilitate the research and selection of the construction location and scale of ecological reserves. The results show that our country needs to build more ecological reserves in the north of Xinjiang Province, the northwest of Shandong Province, the northeast of Inner Mongolia and most areas of Shanxi Province, Hebei Province, Jilin Province and Liaoning Province.