Abstract:Single ground pressure monitoring scale can"t meet the needs of safety monitoring of rock mass of different scales during the process of ore pillar stoping. Aimed at the problem, the "optimization" principle that "macro and micro combination, whole and local coordination" is proposed in this paper. Ground pressure monitoring technologies of different scales such as microseismic, stress, strain and displacement are used to monitor the ground pressure activities of test panel of a phosphate ore during the process of ore pillar stoping, and guide the mine stoping ore pillar safely, which has achieved a good result.