Abstract:Taking the modernization upgrade project of Ershilipu Lake-diversion Irrigation District in Dongping County as the research object, this paper systematically analyzes the operation effects, existing deficiencies and optimization routes after the district's reconstruction. Through comprehensive evaluation on water-saving supporting renovation, modernization upgrading measures and corresponding economic benefits, reveals that the renovation project has boosted irrigation water use efficiency, cut water resource waste, and driven agricultural output growth and farmers' income increase. In view of service capacity bottlenecks concerning infrastructure, management system and technical application during irrigation operation, proposals including refined project management, smart irrigation district construction and eco-oriented development are put forward to advance high-quality and sustainable development of the irrigation district.