Coal mine ground pressure monitoring device

The utility model discloses a coal mine ground pressure monitoring device, which relates to the technical field of measurement and comprises a mounting block, a connecting block is arranged at the top of the mounting block, the connecting block is inserted into the mounting block and is in sliding connection with the mounting block, and a hydraulic cylinder is fixedly mounted in the mounting block. A hydraulic cylinder is arranged on the top of the first electric telescopic rod, the output end of the hydraulic cylinder is fixedly connected with a connecting block, a pressure sensor is fixedly installed on the top of the connecting block, and a plurality of auxiliary structures are arranged on the top of the pressure sensor. A first auxiliary block is moved through a first electric telescopic rod, a second auxiliary block is further driven to move longitudinally, a top plate rotates with a rotating shaft as the circle center, the inclination angle of the top plate is adjusted, contact with a rock wall with an