Abstract:As an important national drinking water source, Jin Xiuchuan Reservoir is responsible for ensuring the drinking water safety and ecological water supplement for 400,000 residents in Jinan's urban area, as well as agricultural irrigation in downstream. In recent years, problems such as water pollution and ecological damage have become increasingly prominent, making it urgent to strengthen water resources management, improve the environmental protection and management system, and promote the construction of water ecological civilization. By analyzing the prominent water environment problems of Jinan Jin Xiuchuan Reservoir, this paper summarizes the experiences and practices in water ecological restoration and prevention of water resources pollution, so as to build a water ecological picture of the southern mountainous area of Quancheng (Spring City, i.e. Jinan).