Restricted by the natural environment and weather conditions, there is year-round drought and little rain, and lakes and groundwater resources are also very scarce, so the drinking water problem of residents needs to be solved urgently. The area where the project is located is a densely populated area, especially the child population. According to statistics, children under the age of 10 account for more than 20% of the total population in some areas. The safety of water quality directly affects the health and sustainable development of the people in this area. Drinking water can effectively reduce the chance and frequency of children and adolescents getting sick, thereby reducing medical expenditures in the area. At the same time, the desalinated seawater can also be used in agricultural irrigation, food, beverage, ice making and other industries in the region, which can vigorously promote local development.