The utility model provides a protective conducting wire connecting tube protector, relating to the field of transmission and distribution construction of the electric power industry. The protector comprises a protective tube which is sleeved outside a connecting tube and is characterized in that two ports of the protective tube are internally provided with an arc-shaped first annular flange respectively, and two ends of the protective tube are respectively connected with conducting wire bending prevention protection devices. According to the protective conducting wire connecting tube protector, through the conducting wire bending prevention protection devices arranged at two ends of the protective tube, the bending curvature radius of the conducting wire when the conducting wire passes a pay-off pulley is controlled, thus when the conducting wire passes the pay-off pulley, the bending curvature radius of the conducting wire is larger than an allowed curvature radius of the conducting wire, the safe operation of the cable conducting wire is ensured, the service life of the conducting wire is prolonged, and the accidents are avoided.