The invention discloses an unshielded twisted paired (UTP), and relates to the technical field of unshielded twisted paired structures. The UTP comprises a cable core, an insulating layer, a shieldinglayer and a sheath layer; the cable core comprises a conductor, the insulating layer is arranged on the outer side of the cable core, the shielding layer is arranged on the outer side of the insulating layer and comprises a conductive layer and an outer insulating layer, and the sheath layer is arranged on the outer side of the shielding layer. According to the UTP, the insulating layer is arranged between the shielding layer and the cable core, the conductive layer on the inner side of the shielding layer is isolated from the cable core, thus the charge interference of the conductive layer to the cable core is reduced, compared with an existing foiled twisted pair (FTP), a drain wire does not need to be arranged additionally, grounding mount is not needed, and the UTP has a good shielding effect compared with an existing UTP.