Last year, the 14th Conference of the Parties to the Convention on Wetlands (COP-14) was successfully held in Wuhan, China and Geneva, Switzerland, in a combination of online and offline. The theme of the conference is "cherish the wetland and live in harmony with nature", calling for governments and people around the world to care and cherish the wetland. One of the main outcomes of the ministerial high-level meeting of the 14th Conference of the Parties to the Convention on Wetlands is the formal adoption of the Wuhan Declaration. The declaration calls on all parties to promote the protection, restoration, management and rational and sustainable use of various wetlands with strong will and practical actions. The Declaration stressed the importance of the full and effective participation of indigenous peoples with free, prior and informed consent, as stipulated in the United Nations Declaration on the Rights of Indigenous Peoples, and the role of indigenous knowledge and practices in promoting the protection, restoration and rational use of wetlands. The Chinese civilization has a long history and has a long history. It has created the splendid Yellow River civilization and the Yangtze River civilization. The people of all ethnic groups in China have accumulated local knowledge and rich experience in the protection and rational use of wetlands, maintaining the prosperity of the Chinese nation. Especially in the recognition, protection and utilization of wetland plants, the Chinese people have contributed many fresh cases to the world, showing the Chinese wisdom of harmonious coexistence between human and nature. For example, duckweed is a common wetland plant, which often floats on the surface of uncontaminated water, and is considered as farmland weed in some places. However, the earliest pharmacology work in China, Shennong Materia Medica Classic, recorded the medicinal value of duckweed. In Qiandongnan Miao and Dong Autonomous Prefecture of Guizhou Province, local Dong people believe that duckweed can "help" the growth of rice, and raise fish and ducks in paddy fields, forming a farmland ecosystem composed of rice, duckweed, field fish, ducks and other biological and non-biological environments around. Researchers from the Central University for Nationalities later confirmed the traditional wisdom of the Dong compatriots through scientific research. The "rice duckweed fish duck" ecosystem created by Dong compatriots in southeastern Guizhou is a very good case in China and can be popularized in tens of thousands of similar regions around the world. Traditional knowledge and folk wisdom come from local communities and have been tested by practice for decades or even thousands of years. They are easy to operate, easy to obtain, low cost, easy to adopt and promote. However, in the specific implementation process, it is often difficult and challenging to use local knowledge or traditional wisdom to help wetland restoration. In some people's inherent understanding, traditional knowledge is mostly backward and does not meet the needs of productivity development. People also view the scientificity and rationality of traditional knowledge from a narrow perspective, and thus have an attitude of contempt and even exclusion. Because these local knowledge is difficult to get the due respect and recognition, the living space is gradually shrinking. This not only leads to its inability to be popularized and applied in wetland restoration, but also with the introduction of new technologies and new materials, there will be species that are not suitable for local natural conditions or even exotic