The invention relates to a striking core column of an energy-saving lamp, which comprises an exhaust pipe, a horn and a guide wire, wherein the exhaust pipe is vertically arranged in the horn, a flat clamping head and an exhaust hole which is communicated with the exhaust pipe are arranged at the bottom end of the horn, concave points are struck on one segment of pipe wall of the exhaust pipe extending into the horn, and the inside diameter of the exhaust pipe at the positions of the concave points is smaller than that of the exhaust hole. The striking core column has reasonable and simple structure, the struck core column can effectively fix solid mercury to enable the solid mercury not to move, and meanwhile, mercury vapor also can not be influenced by the position of the solid mercury and can be successfully discharged, thereby the service life of the energy-saving lamp is greatly prolonged. In addition, processing equipment thereof can realize automated production, saves labor force, improves the qualified rate and the production efficiency of products and is suitable for large-range generalization.