The invention discloses a universal type cable core end sealing cap. The universal type cable core end sealing cap comprises a hollow cylinder. One end of the hollow cylinder is a blind end, and the other end of the hollow cylinder forms a horn open end. An insertion hole matched with a cable core is formed in the hollow part of the hollow cylinder, the hollow cylinder is made of a silica gel material, the aperture of the insertion hole ranges from 2.4 mm to 2.6 mm, and the relative to a center axis of the hollow cylinder, the open inclination angle of the horn open end ranges from 26 degrees to 27 degrees. The universal type cable core end sealing cap has the advantages that effective contact and attraction between the core and the insertion hole are guaranteed, disengaging cannot occur, the longitudinal stress of the hollow cylinder in the insertion process of the core is optimized, wide universality and self-adaptation and high field practicality are achieved, the specification matching program in the traditional end sealing process is simplified, and the efficiency of field work is improved.