Abstract: A vandal-proof rack structure for a surveillance monitor is disclosed, which comprises: a frame, having a first gear positioned at a specific location thereof and being used for receiving the surveillance monitor; a first axial seat, having a second gear and a third gear arranged thereat while enabling the second gear to mesh with the first gear and thus enabling the frame to pitch vertically with respect to the first axial seat; and a second axial seat, having a fourth gear arranged thereon while enabling the fourth gear to mesh with the third gear and thus enabling the first axial seat to yaw horizontally with respect to the second axial seat.