Provided is a cable connector. The cable connector comprises an insulation body, a center terminal fixed to the insulation body and a cable connected with the center terminal, wherein the cable comprises a core wire which is used for transmitting signals and connecting with the center terminal, and a grounding layer which is isolated from the core wire. The cable connector is also provided with an external terminal installed on the insulation body; the insulation body is provided with a front end surface and a rear end surface which are opposite to each other; the external terminal comprises a clamping portion projecting on the front end surface and a connecting portion projecting on the rear end surface; and the connecting portion and the grounding portion of the cable are connected. According to the invention, the external terminal is contacted with the grounding layer of the cable, and a metal housing is not adopted so that the cost is lowered, and minimization of the cable connection can be realized.