The invention discloses a cable coupling assembly comprising the following units: an inner housing; a terminal module contained in the inner housing and comprising a conductive terminal and a holdingbody holding the conductive terminal; a cable penetrating one end of the inner housing and is electrically connected with the conductive terminal. The cable coupling assembly also comprises a single elastic connecting terminal sleeved on a conductive shielding layer exposed on the cable; the single elastic connecting terminal is used for electrically connecting the cable conductive shielding layerto the inner housing. The cable coupling assembly can reduce parts numbers, thus greatly reducing the cable coupling assembly assembling complexity, reducing the cable coupling assembly cost, greatlysaving the internal mounting space in the cable coupling assembly, and reducing the whole cable coupling assembly size.