In the 1990s, I had concerns about whether China could complete a major project such as the South to North Water Diversion Project, Now, as an engineer, I applaud the achievements of the South to North Water Diversion Project. It has been proven that China is at the forefront of the world in terms of technical level and innovation ability in water conservancy engineering, just like two thousand years ago The construction of the South to North Water Diversion Project has overcome a series of world-class technical difficulties such as low lift and large flow pump stations, ultra large aqueducts, large diameter water tunnels, combination of new and old concrete, and construction of expansive soil, creating multiple world records. "Jiang Xuguang, Chairman of China South to North Water Diversion Group, introduced that as of now, the first phase of the East Middle Line Project has transferred over 65 billion cubic meters of water, supplying water to multiple important cities, For example, "Nanshui" already accounts for 75% of the water supply in Beijing's urban area and 99% of the water supply in Tianjin's urban area. So, is 65 billion cubic meters of water regulation sufficient? Can the South to North Water Diversion Project be replicated in other regions? Can the water shortage in the western regions be solved through water diversion? There is a view that China still needs to further optimize its water resources. In recent years, the total amount of water used in China has slowly decreased, indicating that China has reached a "turning point" in water use, indicating that under the current water supply capacity, the northern region of China has reached a relative balance between water supply and demand. In response to the above point of view, Zhang Jianyun, an academician of the CAE Member and director of the Climate Change Research Center of the Ministry of Water Resources, said that this judgment ignored many factors that caused the slow decline of the total water use, such as the data deviation caused by the statistical correction of the water conservancy census. Currently, China's water efficiency has been effectively improved, but the demand for water has not been truly met. "Zhang Jianyun said that with the growth of China's economic and social scale, such as the increase in urbanization rate, the increase in domestic consumption demand, and the expansion of production scale, the demand for water will also increase. The peak water usage nodes in major developed countries support this point. Data shows that the "turning point" of total water consumption only occurs when the proportion of the primary industry is less than 5%, the proportion of the secondary industry is 30-40%, and the proportion of the tertiary industry is above 60%. The current proportion of China's primary and secondary industries is still relatively large, while the proportion of the tertiary industry only reaches 52.8%, which has not reached its peak stage. "Zhang Jianyun said that there is still significant room for improvement in China's urbanization rate and per capita GDP, which require further optimization of water resources to provide guarantees for economic development in different regions. The South to North Water Diversion Project will inject "living water" into the economic development of the western region. Currently, the South to North Water Diversion Project has solved the water source problems in more than 40 large and medium-sized cities, as well as over 280 counties and cities. It has become a lifeline for optimizing water resource allocation, ensuring people's drinking water safety, reviving the ecological environment of rivers and lakes, and unblocking the north-south economic cycle. Where will this vibrant lifeline extend? Jiang Xuguang introduced that the follow-up project of the South to North Water Diversion Project will accurately grasp the respective characteristics of the East Line, Middle Line, and West Line, and carry out construction in stages. The implementation of "one trunk, multiple branches, and expansion" on the eastern route,