The utility model discloses a monitor control point atmospheric pressure anchor, including hollow structure's anchor post, wear to be equipped with the outside anchor assembly of multiunit extensibleto anchor post on the lateral wall of anchor post, multiunit anchor assembly lays along the axial of anchor post, is provided with pneumatic rubber capsules in the anchor post, and pneumatic rubber capsules's both ends are fixed in the anchor post, and the top of anchor post is provided with the control point component, wears to be equipped with the gas core who communicates with pneumatic rubbercapsules on the component of control point, and component top in control point is provided with the hammering cushion that can remove. The utility model discloses a bury the anchor post in the soil body, adopt gas core towards the interior filling gas body of pneumatic rubber capsules again, utilize pneumatic rubber capsules swelling pressure to wear to establish in the soil body with anchor assembly to fix the anchor post in the soil body, finally utilize this atmospheric pressure anchor to fix the monitor control point, adopt atmospheric pressure anchor fixed monitor control point anti - beaten, resistance to deformation, anticorrosive, but and the simple and convenient reuse of this atmospheric pressure anchor construction.