Energy-saving type multidirectional infrared positioning test line pendant

The invention discloses an energy-saving type multidirectional infrared positioning test line pendant and belongs to the field of construction tools. The line pendant comprises a hanging part and a pendant part, wherein the interiors of the hanging part and the pendant part are cylindrical hollow cavities; the hanging part and the pendant part are connected with each other by using threads, and the interiors are cylindrical hollow cavities; a conical end part is provided with a positioning light ray hole along the axial center; multiple infrared emitters are arranged in the inner cavity of the pendant part; a battery cylinder is arranged in the cylindrical hollow cavity of the hanging part, and a battery and a switch are arranged in the battery cylinder; a movable contact plate and a fixed contact plate are arranged between the pendant part and the hanging part respectively, and multiple contact points are arranged between the two contact plates; and the line pendant which is lifted up after rotating angles can respectively emit point-like positioning, vertical or/and horizontal infrared rays. During construction, the line pendant disclosed by the invention can reduce construction errors during construction and improve the vertical positioning accuracy, and can be used for testing verticality and levelness.