The variety and contents of organic and amino acids produced by strain NBT under culture of feldspar were deterimented.The results showed that strain NBT was able to produce Oxalic,tartaric,citric and malic acides,whose concentrations ranged between 5.16~217.30mg L^-1,3.44~291.94mg L^-1,4.08~113.31mg L^-1 and 3.15~108.89mg L^-1 respectively.Several kinds of amino acids were also produced.In media with nitrogen,the strain NBT could produce IAA,GA3,ZR and IPA.Their concentrations ranged between 0.54~3.77nmol mL^-1、0.19~2.97nmol mL^-1、0.91~2.62nmol mL^-1 and 5.49~31.15nmol mL^-1 respectively.The flask shake experiment showed that the strain NBT was capable of not only releasing potassium from soil minerals but also absorbing most of the potassium released.The K adsorbed by the cells accounted for 88.86%~95.05%of the Kreleased by the strain NBT.