The plant species, their geographic distribution and nodulation of leguminous green manure plant in Yunnan tapped rubber plantation were investigated and evaluated in this paper. There are 22 genera and 42 species leguminous plants growing under rubber tree canopy in Yunnan Province. These plants are widely distributed with low plant population. Herbage, vine and bush are main growth types. There are a few species in each genera. The exploitment of these resources is limited. The nodulation rate of these plants is 88.2%. The large, round or oval shape, and pink or red color of root nodules were observed and recorded.