【Objective】This paper aims to provide references for eco-environment protection and sustainable development of Yuntaishan Karst natural area. 【Method】The phosphate-solubilizing index,phosphatase activity,growth status and carbon source utilization were analyzed by isolating and purifying organophosphate bacteria from its soil. 【Result】The phosphorus uptake,phosphatase activity,growth status and carbon source efficiency of organic phosphorus bacteria( OPBS13,OPBS12,OPSB14,OPBS32) isolated from soil were diff...