The invention discloses a cable connector assembly (100) which comprises an insulating body (2), an optical module (5) and an optical fiber (6), wherein the insulating body is provided with an installing groove (221), the optical module is arranged in the installing groove and can slide along the front-back direction, and the optical fiber is connected to the optical module; and the cable connector assembly also comprises a first magnetic element (91) and a second magnetic element (92), the first magnetic element is arranged on the insulating body, the second magnetic element is arranged on the optical module, and the first magnetic element and the second magnetic element are interacted, so that the optical module can move forwards along the installing groove.