The Three Parallel Rivers of Yunnan Protected Areas refers to the longitudinal valley of the Hengduan Mountains where the Nu River, Jinsha River and Lancang River flow in parallel in Yunnan Province, and has rich plant resources. In order to find out the distribution of buckwheat germplasm resources in this area, the wild buckwheat expedition team of the Institute of Crop Science of the Chinese Academy of Agricultural Sciences conducted a 15-day wild buckwheat survey in the area from 2020 to 2022, collected a total of 60 materials from 8 species of The genus Fagopyrum Miller, clarified the distribution and population characteristics of buckwheat germplasm resources in this region, and discovered some special wild buckwheat resources. The survey results laid a solid foundation for the targeted conservation and utilization of buckwheat germplasm resources in this region, and provided certain reference value for the study of the origin and domestication of buckwheat.