The utility model relates to a novel stereoplasm security fence pendant. Its characteristics are: bottom plate (2) including the rectangle, install bolt (1) respectively thereby can fix in stereoplasm security fence pillar side at the upper and lower both ends of this bottom plate (2), there are support groove (3) at the last fixed surface of this bottom plate (2), this asks groove (3) to press from both sides including a U type, with bottom plate (2) upper surface direct contact to the side of the U type on this U type presss from both sides, and the opening part both sides that this U type pressed from both sides are equipped with an extension plate respectively, this extension plate is >= 150 obtuse angle with the contained angle that the U type pressed from both sides on the length direction, still include pipe cap (4), this pipe cap (4) comprise extension (41) and top (42) that are connected, and wherein top (42) are hollow cuboid for quadrangular shape extension (41). The utility model discloses it installs, dismantles stereoplasm security fence to be convenient for the staff after the use, single can easily the completion, and self is durable moreover.