南诏是唐朝时位于中国云南洱海地区的少数民族政权，其农业生产水平已与内地接近，尤以水利事业最为兴盛。当时各族人民开渠引流灌溉农田，因地制宜兴修高山蓄水工程，在涵管引水技术和城市用水建设方面也颇具特色，对西南少数民族地区水利事业的发展作出了贡献。 Nanzhao was a minority government located in Erhai Lake, Yunnan Province, China in the Tang Dynasty. Its agricultural production level is close to the mainland, especially in the water conservancy. At that time, people of all nationalities drafted and irrigated farmland to open drainage and irrigated farmland, and built high-altitude water storage projects according to local conditions. They also made distinctions in culvert water diversion technology and urban water use construction, and made contributions to the development of water conservancy in southwest ethnic minority areas.