The present invention relates to a cable anchoring device. According to an embodiment of the present invention, a cable anchoring device (10) which is coupled to a bracket comprises: a cap (400) including an insertion unit (420) wherein a thin wall unit (421) and a thick wall unit (422) are integrally formed; a groove socket (200) including a bracket fixing unit (230) having an insertion groove (234) wherein the insertion unit (420) is inserted and a bracket fixing groove (233) wherein a bracket is fixated; and a pressure member (300) pressurizing the thick wall unit (422) to be placed on the bracket fixing groove (233).
