The invention provides a mine exploiting shot hole plugging device and discloses the shot hole plugging device which is capable of supporting filled sand stone after putting the sand stone into a shothole and tamping the sand stone. By means of the mine exploiting shot hole plugging device, the sand stone filling can be made to be more convenient, the sand stone filling efficiency in shot hole plugging is improved, the filled sand stone can be supported, the sand stone is prevented from falling, and the plugging effect is better. The mine exploiting shot hole plugging device is characterizedin that a position-limiting plate is arranged on the outer wall of one end of a threaded sleeve, the position-limiting plate is of an annular plate-shaped structure, one side of the position-limitingplate is provided with a rubber pad, a fixed sleeve is arranged at one end of the threaded sleeve, the outer wall of the fixed sleeve is provided with threads, one end of a main body tube is of an open structure, the inner wall of one end of the main body tube is provided with an annular groove, the groove wall of the annular groove is provided with threads which correspond to the threads on the outer wall of the fixed sleeve, the center of the other end of the main body tube is provided with a through-hole, an expansion ring is arranged inside the main body tube, the inner side of the expansion ring is provided with threads, and the outer side of the expansion ring is provided with a plurality of rubber protrusions.