Abstract: Abstract：The paper has evaluated the contents of Nutrition elements N, P, K, Ca, Mg, S, Fe, B, Mn, Cu, Zn, Mo in 13 kinds of Desmodium Desvaux tropical green manure. The result showed that Desmodium contained N, P, K- organic green manure, and the rich content of trace elements. In 13 kinds of Desmodium, Desmodium velutinum (Willdenow) de Candolle, D. velutinum, D. sequax Wallich were belonged to the secondary organic fertilizers; D. ovalifolium (Prain) Wallich ex Merrill and D. heterocarpon (Linnaeus) AP. de Candolle were the fourth fertilizers; D. rensonii nicaraguense Oersted , D. triflorum strigillosum CIAT1315, D. gangeticum (Linnaeus) AP. de Candolle , D. tortuosum (Swartz) AP. de Candolle , D. intortum (Miller) Urban , D. heterocarpon (Linn) DC., D. heterophyllum (Willdenow) AP. de Candolle and D. triflorum (Linnaeus) AP. de Candolle were belonged to the third organic fertilizers.