The invention discloses a dedicated traction support of an outgoing line of a transformer winding. The support is characterized by comprising a circular base (8) equipped with a trough hole (8-1), wherein a long screw (9) and a nut are disposed in the trough hole (8-1); the circular base (8) is connected to a tubular support (16), two sides of the tubular support have hollow parts (16-1), and a carbon fiber anti-wear sleeve (3) is inlaid into the inner side; pressing rings (4) with distributed balls (6) are connected to the tubular support (16); a rotary frame (5) composed of a rotary support (5-1) and a rotary ring (5-2) is sleeved between the pressing rings (4); a connecting end part of the rotary support (5-1) is connected to roller wheel supports (2) of a U-shaped limiting rod (1); and a roller wheel (14) is connected between the two roller wheel supports (2). According to the invention, the structure is simple; the size is small; use is convenient; working efficiency is increased; passing and leading are easier; twisting is avoided; a lead head can be pulled accurately; and hidden safety hazards are avoided.