Abstract: The research results show that the treatment with the green manure of Phaseolus calcalatus carl increase the grain yield and biomass of upland rice and grain yield of corn by 42．86％ ，70．77％ ，and 19．28％ respectively compared with control treatment；it can improve the soil fertility，the organic matter，total N，total P and total K content in 0～ 1 0cm soil layer are 26．34g／kg，1．98g／kg，0．08g／kg and 18．2g／kg，increased by 4．84g／kg，0．32g／kg，0．01g／kg，and 3．9g／kg respectively compared with the control treatment；as the cover crop betwen the rows of rubber trees in young rubber plantation，it can avoid the erosion of surface soil in plantation；as the fine fodder of the livestock，the leaf of haseolus calcalatus contains abundant nutrition(134．0g／kg coarse protein，184．7g／kg coarse fibre，32．0g／kg coarse fat，and 64．6g／kg c0arse ash)．and 18 kinds of amino acids(87．3g／kg)．