Honghe Yuanyang Terrace is a world masterpiece. It is the Hani nationality and other nationalities that have exerted amazing wisdom and courage for generations to cultivate terraced fields. At the same time, they have also exerted great genius and creativity and dug hundreds of ditches and trunk canals on the mountains, thus resolving the lifeline of rice terraced fields - water conservancy problems, Honghe Yuanyang terraced fields, which embodies the wisdom and diligence of the Hani nationality and other nationalities, and is a great masterpiece. They have spent tens of generations reclaiming tens of thousands of terraces, introducing ditches and water canals into the fields for irrigation. Because of the long flow of mountains and rivers, the terraces are saturated for a long time, which ensures the development, growth and harvest of rice. The imagination of cultivating terraced fields of Hani nationality is astonishing. With the change of mountain topography, according to local conditions, large fields are cultivated on gentle slopes, small fields are cultivated on steep slopes, and even in the crevices beneath ditches. As a result, there are many acres of terraced fields for large and small ones only with big dustpans, often tens of thousands of acres on one slope. This landscape constitutes an unpredictable symphony of world art, and has become a spectacular terrace attracting worldwide attention.