The invention relates to a cable connector component which is applicable to being installed on a panel, and the panel is provided with an interface and a plurality of openings communicated with the interface; the cable connector component comprises an insulating body provided with a butt joint part and a side arm, a conductive terminal contained inside the insulating body, a cable connected with the conductive terminal, and a metal locating piece arranged on the side arm; the butt joint part is provided with at least one stopping part corresponding to the openings; the stopping part passes through the opening on the panel and transversely moves a certain distance, so that the stopping part is staggered with the opening; a press part is formed at the outer side of a locating piece, and thefront end is provided with a clamping part which is contained inside the interface of the panel; and when the external force is applied on the press part, the clamping part can move backward in an elastic way so as to be arranged outside the interface of the panel and lead the cable connector component to be separated from the panel.