Rock mass multidirectional mining-induced stress monitor

The utility model provides a rock mass multidirectional mining-induced stress monitor, which relates to the field of rock mass mining-induced stress monitoring and comprises a surrounding rock, a shell arranged on the inner side of the surrounding rock, a supporting plate arranged on the inner side of the shell, a connecting column arranged above the supporting plate and penetrating through the shell, and a plurality of film pressure sensors arranged on the surface of the connecting column. According to the utility model, the shape of the connecting column is polygonal, and the plurality of film pressure sensors are respectively arrayed on the plurality of surfaces of the connecting column, so that the plurality of film pressure sensors can simultaneously monitor the stress states of the surrounding rock body in a plurality of directions; the monitoring result can comprehensively reflect the characteristics of the stress field before and after mining of the surrounding rock body, the monitoring and constructi